■ 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 — 1100 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)BLK open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 25.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.83
-0.19
1050
0.0016
1.48
-0.24
-0.18
0.81
-0.20
1060
0.0017
1.56
-0.25
-0.20
0.73
-0.26
1100
0.0022
1.89
-0.29
-0.28
0.66
-0.29
1130
0.0024
2.08
-0.32
-0.35
0.64
-0.30
1140
0.0025
2.14
-0.32
-0.38
0.61
-0.30
1150
0.0026
2.18
-0.33
-0.40
0.58
-0.31
1160
0.0027
2.22
-0.33
-0.43
0.56
-0.31
1170
0.0027
2.24
-0.33
-0.46
0.53
-0.32
1180
0.0027
2.26
-0.34
-0.49
0.48
-0.32
1200
0.0028
2.26
-0.33
-0.54
0.42
-0.31
1220
0.0027
2.22
-0.32
-0.60
0.32
-0.29
1260
0.0025
2.04
-0.29
-0.71
0.28
-0.27
1280
0.0024
1.91
-0.26
-0.76
0.24
-0.25
1300
0.0022
1.76
-0.23
-0.81
0.07
-0.10
1440
0.0009
0.75
—
-0.98
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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.