About

BTC Exposure is a free, open-source dashboard for tracking your total Bitcoin exposure across the instruments that actually matter to BTC-thesis investors:

• Direct BTC (custody you control)
• MSTR equity — the largest corporate Bitcoin holder
• Spot BTC ETFs — FBTC (Fidelity), IBIT (iShares), ARKB (ARK 21Shares), BITB (Bitwise)
• Strategy preferreds — STRK (Strike — 8% convertible) and STRC (Stretch — 9% perpetual)

What it computes

• mNAV (simple and full / EV) — premium or discount to BTC NAV
• BTC per share / sats per share — Saylor's accretion KPI for MSTR
• Implied $/BTC via MSTR — effective BTC price you're paying through MSTR
• BTC torque — leverage of MSTR vs spot BTC
• Effective BTC exposure — total BTC equivalent across direct + MSTR + ETFs + STRK
• Price projections — Power Law (Santostasi), ARK Big Ideas 2030, Bitwise LTCM 2025, VanEck 2050
• Halving cycle overlay — current cycle vs prior halvings (2012, 2016, 2020)
• Top BTC holders — public corporates and all entities, trailing 12 months

Privacy-first by design

Your positions stay in your browser — no accounts, no cookies, no database. Read the privacy policy for details on data flow.

Tools I use

Self-custody

Spot BTC and stack-the-sats positions belong in cold storage, not on an exchange. The hardware wallet I recommend:

• BitBox02 — Swiss-made hardware wallet with open-source firmware. A BTC-only edition is available if you want a single-coin device. Good fit for BTC-first holders who value open source.

Crypto taxes

If you're tracking BTC and MSTR positions, you'll eventually need to file crypto taxes too. Two I use:

• CoinLedger — connects to US exchanges and wallets, calculates cost basis, and produces IRS-ready tax forms. Use code CRYPTOTAX10 for 10% off. Best for US filers.
• Koinly — same idea, with broader international jurisdiction support (UK, Germany, Australia, Canada, etc.). Best for non-US filers or anyone with multi-country crypto activity.

Disclosure: all three are affiliate links — if you sign up via any of them, this site receives a small commission at no extra cost to you. We only link to tools we'd recommend regardless. Full disclosure on the terms page.

Tech stack

• React 18 + Tailwind CSS + Recharts
• Vercel Edge Functions for the CORS proxy (Yahoo, CoinGecko, Google News)
• @vercel/og for dynamic Open Graph image generation
• Static HTML for marketing/legal pages — zero framework overhead
• Hosted on Vercel + Cloudflare DNS

Feedback

Spotted a bug, missing ticker, or want a feature? Open the dashboard and click Feedback in the footer to send a note. Or open an issue on GitHub.

Support the project

BTC Exposure is free, ad-free, and open source. If it's useful:

• Share it with people who'd find it useful
• Open an issue or PR on GitHub
• Star the repo so it's easier for others to find