# Silicon Floor

> Free institutional-grade terminal for 200+ AI & semiconductor stocks: SEC filings, 13F & 13D/G ownership, N-PORT funds, FINRA short interest, live prices.

## What this is

Silicon Floor tracks 220 listed companies across the AI and semiconductor supply chain — chips,
interconnect, optics, memory, servers, power, neoclouds, equipment, AI software and the cloud giants.
Prices refresh every minute during US hours; fundamentals come from SEC XBRL filings; ownership from
Form 13F (quarter by quarter since the end of 2019), Schedule 13D/G and the Forms 3, 4 and 5 of directors and
officers — one page per person, each stake broken down (shares held, restricted shares, options); short interest
and short volume from FINRA.

## How to cite it

- Every figure carries the date of the data it comes from, not the date it was read.
- Fundamentals of foreign issuers are labelled as fiscal-year figures, never presented as trailing twelve months.
- Figures filed in a currency other than the quote currency are shown without derived ratios.
- Dividend projections are mechanical estimates bounded by measured cash coverage. Not investment advice.
- A person can have two figures for one company: the shares held (Form 4) and what the SEC counts as theirs
  (Schedule 13D/G, which adds options and unvested shares). Say which one you quote.
- Every change of a position is an event between two declarations of the same kind by the same holder: every
  13F sale and purchase of the quarter, each Schedule 13D/G with its nature. A holder that falls below 5% no longer
  has to report: that is not a sale. A 13F line whose value contradicts its share count is never read as a sale.
- A manager's performance is the return of the AI-stock portfolio it declared at the start of each quarter, held
  unchanged (13F filings do not show trades within a quarter): its declared picks, not the return of its funds, and
  never the change in declared value, which mixes prices with purchases.

## Use it directly (MCP)

Silicon Floor is a remote MCP server: add `https://siliconfloor.com/mcp` to any MCP client (Claude, Cursor, an agent of your
own) and query the data directly. No key, no sign-up, read-only. Tools: list_companies, get_company, get_financials,
compare_companies, screen_companies, get_ownership, get_filings, get_dividends, get_signals,
get_figure_history, what_changed, get_news, get_market_overview, get_market, get_holders, get_price_history.
Documentation — how to connect it in each client, what to ask, how to read the answers: https://siliconfloor.com/docs/mcp

The same data is served as JSON over a versioned HTTP API — `https://siliconfloor.com/api/v1/schema` describes every route.

## Contact

A question, a figure that looks wrong, a source we should add: contact@siliconfloor.com
Updates on X: https://x.com/SiliconFloor

## Pages

- [Markets](https://siliconfloor.com/): every tracked stock, breadth, themes and the day's movers
- [Screener](https://siliconfloor.com/screener): filter on growth, margins, valuation, relative strength
- AI stock comparisons, side by side (growth, margins, valuation, ownership, short interest): [all comparisons](https://siliconfloor.com/compare), [NVIDIA vs AMD](https://siliconfloor.com/compare/nvidia-vs-amd), [NVIDIA vs Intel](https://siliconfloor.com/compare/nvidia-vs-intel), [NVIDIA vs Palantir](https://siliconfloor.com/compare/nvidia-vs-palantir), [AMD vs Intel](https://siliconfloor.com/compare/amd-vs-intel), [NVIDIA vs Broadcom](https://siliconfloor.com/compare/nvidia-vs-broadcom), [NVIDIA vs TSMC](https://siliconfloor.com/compare/nvidia-vs-tsmc), [NVIDIA vs Google](https://siliconfloor.com/compare/nvidia-vs-google), [NVIDIA vs Apple](https://siliconfloor.com/compare/nvidia-vs-apple), [NVIDIA vs Microsoft](https://siliconfloor.com/compare/nvidia-vs-microsoft), [NVIDIA vs Micron](https://siliconfloor.com/compare/nvidia-vs-micron), [NVIDIA vs Cerebras](https://siliconfloor.com/compare/nvidia-vs-cerebras), [CoreWeave vs Nebius](https://siliconfloor.com/compare/coreweave-vs-nebius)
- Lists of AI stocks, each with its criteria written out (not advice): [Fastest-growing AI stocks](https://siliconfloor.com/ai-stocks/fastest-growing), [AI stocks on the rise](https://siliconfloor.com/ai-stocks/rising), [Small-cap AI stocks](https://siliconfloor.com/ai-stocks/small-cap), [Blue-chip AI stocks](https://siliconfloor.com/ai-stocks/blue-chip), [AI infrastructure stocks](https://siliconfloor.com/ai-stocks/infrastructure), [AI stocks with the lowest price-to-sales ratios](https://siliconfloor.com/ai-stocks/lowest-price-to-sales)
- [Dividends](https://siliconfloor.com/dividends): yields, growth, coverage and likely initiators
- [News](https://siliconfloor.com/news): wires and articles tagged by company and theme
- [Signals](https://siliconfloor.com/signals): fourteen deterministic signals with their measured reliability
- [Big Money Report](https://siliconfloor.com/big-money): what hedge funds and big investors bought and sold in AI stocks each quarter, read from every 13F filing — flows by sector, most bought and sold stocks, the biggest moves, whose picks paid off; one page per quarter (`/big-money/q2-2026`)
- [Insider Report](https://siliconfloor.com/insider-trading): what CEOs, founders and directors of AI and chip companies bought and sold each quarter, read from every Form 4 — biggest sellers, insider buying, companies, new insiders; one page per quarter (`/insider-trading/q3-2026`)
- [Short interest](https://siliconfloor.com/short-interest): the share of each AI and chip stock sold short at the latest FINRA settlement, days to cover, biggest increases and decreases; what short interest is, and how it differs from short float (source: FINRA)
- [13F filings](https://siliconfloor.com/13f-filings): what a 13F is, the filing deadlines (45 days after each quarter, next business day), what it shows and leaves out, the latest 13Fs filed with AI stocks, well-known filers (Berkshire Hathaway, Situational Awareness, Duquesne…)
- [Top AI investors](https://siliconfloor.com/ai-investors): the funds whose declared AI picks did best (last quarter, 1, 3 and 5 years, against SMH), insiders buying their own stock and how it has done since, AI companies investing in other AI companies, the biggest individual stakes — not advice
- [Holders](https://siliconfloor.com/holders): who owns AI stocks — funds, large shareholders, directors and officers; each person's stake broken down; which managers' declared AI picks did best; an Atom feed of each holder's filings (`/holders/<key>/feed.xml`)
- [Service status](https://siliconfloor.com/status): availability of the platform and its data
- [MCP server documentation](https://siliconfloor.com/docs/mcp): connect Claude, ChatGPT or any MCP client; the eighteen tools

## Companies

- [Marvell (MRVL)](https://siliconfloor.com/stocks/mrvl)
- [Ambarella (AMBA)](https://siliconfloor.com/stocks/amba)
- [Lattice Semiconductor (LSCC)](https://siliconfloor.com/stocks/lscc)
- [SiTime (SITM)](https://siliconfloor.com/stocks/sitm)
- [Soitec (SOI.PAR)](https://siliconfloor.com/stocks/soi.par)
- [Astera Labs (ALAB)](https://siliconfloor.com/stocks/alab)
- [Credo (CRDO)](https://siliconfloor.com/stocks/crdo)
- [Rambus (RMBS)](https://siliconfloor.com/stocks/rmbs)
- [MACOM (MTSI)](https://siliconfloor.com/stocks/mtsi)
- [Semtech (SMTC)](https://siliconfloor.com/stocks/smtc)
- [Applied Optoelectronics (AAOI)](https://siliconfloor.com/stocks/aaoi)
- [POET Technologies (POET)](https://siliconfloor.com/stocks/poet)
- [Lumentum (LITE)](https://siliconfloor.com/stocks/lite)
- [Coherent (COHR)](https://siliconfloor.com/stocks/cohr)
- [Fabrinet (FN)](https://siliconfloor.com/stocks/fn)
- [Lightwave Logic (LWLG)](https://siliconfloor.com/stocks/lwlg)
- [Ciena (CIEN)](https://siliconfloor.com/stocks/cien)
- [Micron (MU)](https://siliconfloor.com/stocks/mu)
- [Netlist (NLST)](https://siliconfloor.com/stocks/nlst)
- [Sandisk (SNDK)](https://siliconfloor.com/stocks/sndk)
- [Penguin Solutions (PENG)](https://siliconfloor.com/stocks/peng)
- [Super Micro Computer (SMCI)](https://siliconfloor.com/stocks/smci)
- [Celestica (CLS)](https://siliconfloor.com/stocks/cls)
- [Navitas (NVTS)](https://siliconfloor.com/stocks/nvts)
- [Vicor (VICR)](https://siliconfloor.com/stocks/vicr)
- [Vertiv (VRT)](https://siliconfloor.com/stocks/vrt)
- [Modine (MOD)](https://siliconfloor.com/stocks/mod)
- [Bloom Energy (BE)](https://siliconfloor.com/stocks/be)
- [Oklo (OKLO)](https://siliconfloor.com/stocks/oklo)
- [Nebius (NBIS)](https://siliconfloor.com/stocks/nbis)
- [CoreWeave (CRWV)](https://siliconfloor.com/stocks/crwv)
- [Applied Digital (APLD)](https://siliconfloor.com/stocks/apld)
- [IREN (IREN)](https://siliconfloor.com/stocks/iren)
- [TeraWulf (WULF)](https://siliconfloor.com/stocks/wulf)
- [Cipher Mining (CIFR)](https://siliconfloor.com/stocks/cifr)
- [Core Scientific (CORZ)](https://siliconfloor.com/stocks/corz)
- [Aehr Test Systems (AEHR)](https://siliconfloor.com/stocks/aehr)
- [Camtek (CAMT)](https://siliconfloor.com/stocks/camt)
- [Onto Innovation (ONTO)](https://siliconfloor.com/stocks/onto)
- [FormFactor (FORM)](https://siliconfloor.com/stocks/form)
- [Nova (NVMI)](https://siliconfloor.com/stocks/nvmi)
- [C3.ai (AI)](https://siliconfloor.com/stocks/ai)
- [SoundHound AI (SOUN)](https://siliconfloor.com/stocks/soun)
- [BigBear.ai (BBAI)](https://siliconfloor.com/stocks/bbai)
- [UiPath (PATH)](https://siliconfloor.com/stocks/path)
- [Tempus AI (TEM)](https://siliconfloor.com/stocks/tem)
- [NVIDIA (NVDA)](https://siliconfloor.com/stocks/nvda)
- [Broadcom (AVGO)](https://siliconfloor.com/stocks/avgo)
- [AMD (AMD)](https://siliconfloor.com/stocks/amd)
- [Qualcomm (QCOM)](https://siliconfloor.com/stocks/qcom)
- [Texas Instruments (TXN)](https://siliconfloor.com/stocks/txn)
- [Analog Devices (ADI)](https://siliconfloor.com/stocks/adi)
- [Microchip (MCHP)](https://siliconfloor.com/stocks/mchp)
- [NXP Semiconductors (NXPI)](https://siliconfloor.com/stocks/nxpi)
- [onsemi (ON)](https://siliconfloor.com/stocks/on)
- [Intel (INTC)](https://siliconfloor.com/stocks/intc)
- [Monolithic Power (MPWR)](https://siliconfloor.com/stocks/mpwr)
- [Silicon Labs (SLAB)](https://siliconfloor.com/stocks/slab)
- [Power Integrations (POWI)](https://siliconfloor.com/stocks/powi)
- [Diodes (DIOD)](https://siliconfloor.com/stocks/diod)
- [Cirrus Logic (CRUS)](https://siliconfloor.com/stocks/crus)
- [Synaptics (SYNA)](https://siliconfloor.com/stocks/syna)
- [Qorvo (QRVO)](https://siliconfloor.com/stocks/qrvo)
- [Skyworks (SWKS)](https://siliconfloor.com/stocks/swks)
- [Allegro MicroSystems (ALGM)](https://siliconfloor.com/stocks/algm)
- [Wolfspeed (WOLF)](https://siliconfloor.com/stocks/wolf)
- [Alpha & Omega Semiconductor (AOSL)](https://siliconfloor.com/stocks/aosl)
- [MaxLinear (MXL)](https://siliconfloor.com/stocks/mxl)
- [Vishay (VSH)](https://siliconfloor.com/stocks/vsh)
- [Impinj (PI)](https://siliconfloor.com/stocks/pi)
- [CEVA (CEVA)](https://siliconfloor.com/stocks/ceva)
- [Applied Materials (AMAT)](https://siliconfloor.com/stocks/amat)
- [Lam Research (LRCX)](https://siliconfloor.com/stocks/lrcx)
- [KLA (KLAC)](https://siliconfloor.com/stocks/klac)
- [Teradyne (TER)](https://siliconfloor.com/stocks/ter)
- [Entegris (ENTG)](https://siliconfloor.com/stocks/entg)
- [MKS (MKSI)](https://siliconfloor.com/stocks/mksi)
- [ACM Research (ACMR)](https://siliconfloor.com/stocks/acmr)
- [Cohu (COHU)](https://siliconfloor.com/stocks/cohu)
- [Ichor (ICHR)](https://siliconfloor.com/stocks/ichr)
- [Ultra Clean (UCTT)](https://siliconfloor.com/stocks/uctt)
- [Amkor (AMKR)](https://siliconfloor.com/stocks/amkr)
- [Photronics (PLAB)](https://siliconfloor.com/stocks/plab)
- [Veeco (VECO)](https://siliconfloor.com/stocks/veco)
- [Kulicke & Soffa (KLIC)](https://siliconfloor.com/stocks/klic)
- [Western Digital (WDC)](https://siliconfloor.com/stocks/wdc)
- [Seagate (STX)](https://siliconfloor.com/stocks/stx)
- [NetApp (NTAP)](https://siliconfloor.com/stocks/ntap)
- [Arista Networks (ANET)](https://siliconfloor.com/stocks/anet)
- [Cisco (CSCO)](https://siliconfloor.com/stocks/csco)
- [Calix (CALX)](https://siliconfloor.com/stocks/calx)
- [Extreme Networks (EXTR)](https://siliconfloor.com/stocks/extr)
- [Amphenol (APH)](https://siliconfloor.com/stocks/aph)
- [TE Connectivity (TEL)](https://siliconfloor.com/stocks/tel)
- [Viavi (VIAV)](https://siliconfloor.com/stocks/viav)
- [Corning (GLW)](https://siliconfloor.com/stocks/glw)
- [Jabil (JBL)](https://siliconfloor.com/stocks/jbl)
- [Flex (FLEX)](https://siliconfloor.com/stocks/flex)
- [Sanmina (SANM)](https://siliconfloor.com/stocks/sanm)
- [Benchmark Electronics (BHE)](https://siliconfloor.com/stocks/bhe)
- [Plexus (PLXS)](https://siliconfloor.com/stocks/plxs)
- [Dell (DELL)](https://siliconfloor.com/stocks/dell)
- [Hewlett Packard Enterprise (HPE)](https://siliconfloor.com/stocks/hpe)
- [HP Inc. (HPQ)](https://siliconfloor.com/stocks/hpq)
- [IBM (IBM)](https://siliconfloor.com/stocks/ibm)
- [Eaton (ETN)](https://siliconfloor.com/stocks/etn)
- [GE Vernova (GEV)](https://siliconfloor.com/stocks/gev)
- [Quanta Services (PWR)](https://siliconfloor.com/stocks/pwr)
- [EMCOR (EME)](https://siliconfloor.com/stocks/eme)
- [MasTec (MTZ)](https://siliconfloor.com/stocks/mtz)
- [Hubbell (HUBB)](https://siliconfloor.com/stocks/hubb)
- [nVent (NVT)](https://siliconfloor.com/stocks/nvt)
- [Powell Industries (POWL)](https://siliconfloor.com/stocks/powl)
- [Trane (TT)](https://siliconfloor.com/stocks/tt)
- [Carrier (CARR)](https://siliconfloor.com/stocks/carr)
- [Johnson Controls (JCI)](https://siliconfloor.com/stocks/jci)
- [Lennox (LII)](https://siliconfloor.com/stocks/lii)
- [AAON (AAON)](https://siliconfloor.com/stocks/aaon)
- [SPX Technologies (SPXC)](https://siliconfloor.com/stocks/spxc)
- [Fluence (FLNC)](https://siliconfloor.com/stocks/flnc)
- [EnerSys (ENS)](https://siliconfloor.com/stocks/ens)
- [Generac (GNRC)](https://siliconfloor.com/stocks/gnrc)
- [Caterpillar (CAT)](https://siliconfloor.com/stocks/cat)
- [Cummins (CMI)](https://siliconfloor.com/stocks/cmi)
- [NuScale (SMR)](https://siliconfloor.com/stocks/smr)
- [Constellation Energy (CEG)](https://siliconfloor.com/stocks/ceg)
- [Vistra (VST)](https://siliconfloor.com/stocks/vst)
- [Talen Energy (TLN)](https://siliconfloor.com/stocks/tln)
- [NRG Energy (NRG)](https://siliconfloor.com/stocks/nrg)
- [NextEra Energy (NEE)](https://siliconfloor.com/stocks/nee)
- [Southern Company (SO)](https://siliconfloor.com/stocks/so)
- [Duke Energy (DUK)](https://siliconfloor.com/stocks/duk)
- [American Electric Power (AEP)](https://siliconfloor.com/stocks/aep)
- [Dominion Energy (D)](https://siliconfloor.com/stocks/d)
- [Entergy (ETR)](https://siliconfloor.com/stocks/etr)
- [Xcel Energy (XEL)](https://siliconfloor.com/stocks/xel)
- [Exelon (EXC)](https://siliconfloor.com/stocks/exc)
- [Equinix (EQIX)](https://siliconfloor.com/stocks/eqix)
- [Digital Realty (DLR)](https://siliconfloor.com/stocks/dlr)
- [Iron Mountain (IRM)](https://siliconfloor.com/stocks/irm)
- [American Tower (AMT)](https://siliconfloor.com/stocks/amt)
- [Crown Castle (CCI)](https://siliconfloor.com/stocks/cci)
- [SBA Communications (SBAC)](https://siliconfloor.com/stocks/sbac)
- [Hut 8 (HUT)](https://siliconfloor.com/stocks/hut)
- [CleanSpark (CLSK)](https://siliconfloor.com/stocks/clsk)
- [Riot Platforms (RIOT)](https://siliconfloor.com/stocks/riot)
- [MARA Holdings (MARA)](https://siliconfloor.com/stocks/mara)
- [Palantir (PLTR)](https://siliconfloor.com/stocks/pltr)
- [Snowflake (SNOW)](https://siliconfloor.com/stocks/snow)
- [MongoDB (MDB)](https://siliconfloor.com/stocks/mdb)
- [Datadog (DDOG)](https://siliconfloor.com/stocks/ddog)
- [Cloudflare (NET)](https://siliconfloor.com/stocks/net)
- [CrowdStrike (CRWD)](https://siliconfloor.com/stocks/crwd)
- [Zscaler (ZS)](https://siliconfloor.com/stocks/zs)
- [Palo Alto Networks (PANW)](https://siliconfloor.com/stocks/panw)
- [Fortinet (FTNT)](https://siliconfloor.com/stocks/ftnt)
- [ServiceNow (NOW)](https://siliconfloor.com/stocks/now)
- [Adobe (ADBE)](https://siliconfloor.com/stocks/adbe)
- [Intuit (INTU)](https://siliconfloor.com/stocks/intu)
- [Autodesk (ADSK)](https://siliconfloor.com/stocks/adsk)
- [Cadence (CDNS)](https://siliconfloor.com/stocks/cdns)
- [Synopsys (SNPS)](https://siliconfloor.com/stocks/snps)
- [Elastic (ESTC)](https://siliconfloor.com/stocks/estc)
- [GitLab (GTLB)](https://siliconfloor.com/stocks/gtlb)
- [Accenture (ACN)](https://siliconfloor.com/stocks/acn)
- [Cognizant (CTSH)](https://siliconfloor.com/stocks/ctsh)
- [EPAM (EPAM)](https://siliconfloor.com/stocks/epam)
- [Salesforce (CRM)](https://siliconfloor.com/stocks/crm)
- [Oracle (ORCL)](https://siliconfloor.com/stocks/orcl)
- [Microsoft (MSFT)](https://siliconfloor.com/stocks/msft)
- [Alphabet (GOOGL)](https://siliconfloor.com/stocks/googl)
- [Meta Platforms (META)](https://siliconfloor.com/stocks/meta)
- [Amazon (AMZN)](https://siliconfloor.com/stocks/amzn)
- [Apple (AAPL)](https://siliconfloor.com/stocks/aapl)
- [WhiteFiber (WYFI)](https://siliconfloor.com/stocks/wyfi)
- [Bitdeer (BTDR)](https://siliconfloor.com/stocks/btdr)
- [HIVE Digital (HIVE)](https://siliconfloor.com/stocks/hive)
- [Galaxy Digital (GLXY)](https://siliconfloor.com/stocks/glxy)
- [DigitalOcean (DOCN)](https://siliconfloor.com/stocks/docn)
- [Akamai (AKAM)](https://siliconfloor.com/stocks/akam)
- [Fermi (FRMI)](https://siliconfloor.com/stocks/frmi)
- [TSS (TSSI)](https://siliconfloor.com/stocks/tssi)
- [Soluna (SLNH)](https://siliconfloor.com/stocks/slnh)
- [Digi Power X (DGXX)](https://siliconfloor.com/stocks/dgxx)
- [Texas Pacific Land (TPL)](https://siliconfloor.com/stocks/tpl)
- [LandBridge (LB)](https://siliconfloor.com/stocks/lb)
- [Arm Holdings (ARM)](https://siliconfloor.com/stocks/arm)
- [TSMC (TSM)](https://siliconfloor.com/stocks/tsm)
- [Cerebras Systems (CBRS)](https://siliconfloor.com/stocks/cbrs)
- [ASML (ASML)](https://siliconfloor.com/stocks/asml)
- [Axcelis Technologies (ACLS)](https://siliconfloor.com/stocks/acls)
- [Advanced Energy Industries (AEIS)](https://siliconfloor.com/stocks/aeis)
- [Silicon Motion (SIMO)](https://siliconfloor.com/stocks/simo)
- [Himax Technologies (HIMX)](https://siliconfloor.com/stocks/himx)
- [IPG Photonics (IPGP)](https://siliconfloor.com/stocks/ipgp)
- [nLIGHT (LASR)](https://siliconfloor.com/stocks/lasr)
- [TTM Technologies (TTMI)](https://siliconfloor.com/stocks/ttmi)
- [BWX Technologies (BWXT)](https://siliconfloor.com/stocks/bwxt)
- [Centrus Energy (LEU)](https://siliconfloor.com/stocks/leu)
- [Nano Nuclear Energy (NNE)](https://siliconfloor.com/stocks/nne)
- [Public Service Enterprise (PEG)](https://siliconfloor.com/stocks/peg)
- [GDS Holdings (GDS)](https://siliconfloor.com/stocks/gds)
- [VNET Group (VNET)](https://siliconfloor.com/stocks/vnet)
- [Innodata (INOD)](https://siliconfloor.com/stocks/inod)
- [Grid Dynamics (GDYN)](https://siliconfloor.com/stocks/gdyn)
- [Cerence (CRNC)](https://siliconfloor.com/stocks/crnc)
- [SpaceX (SPCX)](https://siliconfloor.com/stocks/spcx)
- [STMicroelectronics (STM)](https://siliconfloor.com/stocks/stm)
- [GlobalFoundries (GFS)](https://siliconfloor.com/stocks/gfs)
- [Tower Semiconductor (TSEM)](https://siliconfloor.com/stocks/tsem)
- [United Microelectronics (UMC)](https://siliconfloor.com/stocks/umc)
- [indie Semiconductor (INDI)](https://siliconfloor.com/stocks/indi)
- [Mobileye (MBLY)](https://siliconfloor.com/stocks/mbly)
- [ASE Technology (ASX)](https://siliconfloor.com/stocks/asx)
- [Keysight Technologies (KEYS)](https://siliconfloor.com/stocks/keys)
- [Comfort Systems USA (FIX)](https://siliconfloor.com/stocks/fix)
- [Sterling Infrastructure (STRL)](https://siliconfloor.com/stocks/strl)
- [Primoris Services (PRIM)](https://siliconfloor.com/stocks/prim)
- [Argan (AGX)](https://siliconfloor.com/stocks/agx)
- [Solaris Energy Infrastructure (SEI)](https://siliconfloor.com/stocks/sei)