Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 13 — is the max pain price.
Open interest by strike · Fri, Jan 21
■ calls (up)■ puts (down)BSOL open contracts per strike for Fri, Jan 21.
Open-interest change: building vs unwinding
Needs two observed snapshot days for this expiration; the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Jan 21
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jan 21
— call IV— put IVATM ≈ 68.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jan 21
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Jan 21
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.95
-0.00
5
0.0090
0.02
-0.00
-0.07
0.93
-0.00
6
0.0121
0.02
-0.00
-0.09
0.88
-0.00
8
0.0198
0.03
-0.00
-0.14
0.85
-0.00
9
0.0241
0.04
-0.00
-0.18
0.81
-0.00
10
0.0283
0.04
-0.00
-0.21
0.78
-0.00
11
0.0322
0.05
-0.00
-0.25
0.74
-0.00
12
0.0355
0.05
-0.00
-0.29
0.70
-0.00
13
0.0381
0.05
-0.00
-0.34
0.66
-0.00
14
0.0400
0.06
-0.00
-0.38
0.62
-0.00
15
0.0413
0.06
-0.00
-0.42
0.59
-0.00
16
0.0420
0.06
-0.00
-0.46
0.56
-0.00
17
0.0423
0.06
-0.00
-0.50
0.53
-0.00
18
0.0423
0.06
-0.00
-0.53
0.50
-0.00
19
0.0420
0.06
-0.00
-0.56
0.47
-0.00
20
0.0416
0.06
-0.00
-0.59
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 20 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.