BSX· Boston Scientific
Open interest · contracts by strike
Spot
45.1
Max Pain
45
Call OI
32,138
Put OI
45,097
P/C ratio
1.40
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 45
Spot 45.1
51
50
3,640
17,987
Call OI
49.5
49
880
48.5
48
2,043
47.5
47
46.5
2,540
46
1,650
45.5
45
14,741
7,447
Put OI
44.5
44
3,542
43.5
43
2,445
42.5
42
771
41.5
41
40
14,243
1,331
39
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.
History
BSX open interest, night by night.
Total call and put contracts held on each recorded session — the level the strike profile above is a snapshot of.
10 Jun → 14 Sep
OI totals over time
Contracts outstanding, summed over the whole captured chain — every listed expiry and strike, wider than the strike band and single expiry shown in the profile above.
call OI, contractsput OI, contracts
One reading per session, captured nightly after the close, 10 Jun → 14 Sep, over CBOE delayed (~15-min) chains, computed across the full listed chain. Gaps are weekends, holidays and sessions a capture missed; any reading can be absent on a session that was captured, and the series is broken rather than drawn through it.