Event risk before this expiration:FOMC decision Wed, Oct 28 · 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 — 530 — is the max pain price.
Open interest by strike · Fri, Apr 16
■ calls (up)■ puts (down)SOXX open contracts per strike for Fri, Apr 16.
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, Apr 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Apr 16
— call IV— put IVATM ≈ 41.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Apr 16
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, Apr 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.71
-0.13
430
0.0024
1.12
-0.14
-0.29
0.70
-0.14
435
0.0024
1.14
-0.14
-0.30
0.69
-0.14
440
0.0025
1.17
-0.14
-0.31
0.68
-0.14
445
0.0025
1.19
-0.15
-0.33
0.66
-0.14
450
0.0026
1.21
-0.15
-0.34
0.64
-0.14
460
0.0027
1.24
-0.15
-0.37
0.61
-0.15
470
0.0028
1.27
-0.15
-0.40
0.58
-0.15
480
0.0029
1.29
-0.15
-0.43
0.56
-0.15
485
0.0029
1.30
-0.16
-0.44
0.52
-0.15
500
0.0030
1.32
-0.16
-0.49
0.51
-0.15
505
0.0030
1.32
-0.16
-0.50
0.49
-0.15
510
0.0030
1.32
-0.16
-0.52
0.48
-0.15
515
0.0030
1.32
-0.16
-0.54
0.46
-0.15
520
0.0030
1.31
-0.15
-0.55
0.45
-0.15
525
0.0030
1.31
-0.15
-0.56
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 54 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.