BTC above $84,000
Will the price of Bitcoin be above $84,000 on May 7? 14:57:03 UTC · ↻ refresh · poly ↗⚠ Modest directional bet: BUY Polymarket No
Deribit P(No) ≈ 95.3% vs Polymarket 91.9%. EV ≈ +$0.04 per $1.
Directional bet — BUY Polymarket No (no hedge, accept 100% downside)
Pure directional play. You bet that Deribit's RN-prob is closer to truth than Polymarket's price. Max upside if No resolves true, max loss if No resolves false. EV is computed using Deribit's RN-prob — caveat that RN-prob includes risk premium and may differ from real-world probability by 5-15%.
| Stake | Shares | Net cost (incl 2% fee) | If right | If wrong | EV (Deribit RN) |
|---|---|---|---|---|---|
| $100 | 109 | $102.00 | +$6.81 (7%) | -$102.00 (-100%) | $+1.73 (+2%) |
| $500 | 544 | $510.00 | +$34.07 (7%) | -$510.00 (-100%) | $+8.64 (+2%) |
| $1,000 | 1,088 | $1,020.00 | +$68.14 (7%) | -$1,020.00 (-100%) | $+17.28 (+2%) |
| $5,000 | 5,441 | $5,100.00 | +$340.70 (7%) | -$5,100.00 (-100%) | $+86.41 (+2%) |
Polymarket No — best ask $0.919 · Deribit implied P(No) ≈ 95.3% · EV per $1 staked = +$0.037 · Max return 9%. Other side (Yes): EV $-0.444 per $1.
Polymarket book (live)
Deribit hedge (live) bull call spread · width $1,000
A: Long Polymarket Yes + Short Deribit synth Yes
Bet "Polymarket Yes is too cheap". Both legs zero each other if Yes wins; locked profit = Deribit short credit − Polymarket Yes cost.
| Leg | Per binary | Total at $1k | Outcome flag |
|---|---|---|---|
| BUY Polymarket Yes | $0.084 | −$79.25 | 943 shares |
| SELL Deribit synth Yes | $0.024 | +$22.71 | + $920.75 collateral |
| Edge / binary | mid | realistic |
|---|---|---|
| poly cost − deribit credit | $-0.131 | $-0.060 |
| Net P&L per $1k | $-123.35 | $-56.54 |
Expiry payoff at $1k
| BTC at expiry | Polymarket | Deribit | Net |
|---|---|---|---|
| ≤ $84,000 | $0 (Yes loses) | +$22.71 (kept credit) | $-56.54 |
| ≥ $85,000 | +$943.46 (Yes wins) | −$920.75 (max loss) + $22.71 credit | $-56.54 |
| ($84,000, $85,000) | Linear interp; better than both ends thanks to spread tightness | ≥ both ends | |
B: Long Polymarket No + Long Deribit synth Yes — preferred
Bet "Polymarket Yes is too expensive". One leg always pays $1; locked profit = $1 − (Polymarket No cost + Deribit Yes cost).
| Leg | Per binary | Total at $1k | Outcome flag |
|---|---|---|---|
| BUY Polymarket No | $0.919 | −$927.15 | 1,009 shares |
| BUY Deribit synth Yes | $0.072 | −$72.85 | spread debit |
| Edge / binary | mid | realistic |
|---|---|---|
| $1 − (poly_no + deribit_long) | $+0.034 | $+0.009 |
| Net P&L per $1k | $+34.57 | $+8.87 |
Expiry payoff at $1k
| BTC at expiry | Polymarket No | Deribit Yes | Net |
|---|---|---|---|
| ≤ $84,000 | +$1,008.87 | $0 (worthless) | $+8.87 |
| ≥ $85,000 | $0 (No loses) | +$1,008.87 (max) | $+8.87 |
| ($84,000, $85,000) | No expires worthless, Deribit pays partial | ≤ ends (negative carry) | |
Why "delta neutral" is approximate. For TRUE delta-neutrality you need (i) same expiry on both venues (Polymarket 2026-05-07 ≠ Deribit 2026-05-07 — basis risk on the gap), and (ii) tight enough Deribit spreads that synthetic-Yes mid ≈ Polymarket Yes. Excludes Polymarket 2% taker fee (~$20/$1k), gas (~$0.50), Deribit margin haircut.