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ProShares Short Bitcoin ETF BITI

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Market dataready · fetched 2026-11-11T14:54:45.747Z

Delta surfaceAlpaca · derived absolute-delta buckets · 2026-11-20

Calculation methodology

Options historyIV: ThetaData historical Greeks, equal-weight mean of call/put 50-delta IV across the next four listed Friday-cycle expirations, including holiday shifts verified against ThetaData’s market calendar. Missing inputs leave gaps. Skew: equal-weight mean of put minus call IV across those four expirations. IV-implied move history: mean of each expiration’s average call/put IV multiplied by the square root of remaining calendar days divided by 365.25; percentage of spot, not a quoted straddle premium.

History data

PriceAlpaca · sip · 2026-11-11T14:54:12.441728441Z

FundamentalsAlpha Vantage · ready · fetched 2026-11-11T14:54:45.045872+00:00

Share price$19.90
1D+0.1%
$19.80$19.84$19.88$19.92$19.965:30 AM6:30 AM9:00 AM1:00 PMBITI
Sold putSold call

ProShares Short Bitcoin ETF options

Live interpolated BITI call and put midpoint premiums by absolute delta.ProShares Short Bitcoin ETF$0.17$0.54$0.91$1.27$1.64$17.71$18.72$19.72$20.73$21.7420Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80ΔOPTION PRICELive BITI spot · $19.90BITI PRICE$0.21$0.29$0.36$0.38$0.39$0.40$0.44$0.55$0.66$0.77$0.89$1.00$1.14$0.28$0.31$0.36$0.47$0.57$0.67$0.78$0.87$0.97$1.07$1.16$1.26$1.53
PutsExpensive1.41×
CallsExpensive1.13×
SkewBearish+10.39 pp
Implied moveBearish±$1.22
TiltBearish15.9% PUT
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ21.8062.4%10.6%18.1175.7%10.4%
25Δ21.4562.1%9.2%18.6563.6%7.8%
30Δ21.0961.8%7.8%19.0856.2%5.9%
35Δ20.7855.9%6.3%19.3156.8%5.3%
40Δ20.4848.0%4.9%19.5457.5%4.7%
45Δ20.1940.2%3.4%19.7758.1%4.0%
50Δ19.9435.4%2.4%20.0058.7%3.4%
55Δ19.7736.2%2.1%20.2056.2%2.9%
60Δ19.6136.9%1.9%20.3953.6%2.4%
65Δ19.4437.7%1.6%20.5851.1%1.9%
70Δ19.2838.4%1.3%20.7748.5%1.5%
75Δ19.1239.2%1.1%20.9646.0%1.0%
80Δ18.9239.1%0.8%21.2946.4%0.7%

20Δ

Calls
Pseudo strike
21.80
IV
62.4%
B/E move
10.6%
Puts
Pseudo strike
18.11
IV
75.7%
B/E move
10.4%

25Δ

Calls
Pseudo strike
21.45
IV
62.1%
B/E move
9.2%
Puts
Pseudo strike
18.65
IV
63.6%
B/E move
7.8%

30Δ

Calls
Pseudo strike
21.09
IV
61.8%
B/E move
7.8%
Puts
Pseudo strike
19.08
IV
56.2%
B/E move
5.9%

35Δ

Calls
Pseudo strike
20.78
IV
55.9%
B/E move
6.3%
Puts
Pseudo strike
19.31
IV
56.8%
B/E move
5.3%

40Δ

Calls
Pseudo strike
20.48
IV
48.0%
B/E move
4.9%
Puts
Pseudo strike
19.54
IV
57.5%
B/E move
4.7%

45Δ

Calls
Pseudo strike
20.19
IV
40.2%
B/E move
3.4%
Puts
Pseudo strike
19.77
IV
58.1%
B/E move
4.0%

50Δ

Calls
Pseudo strike
19.94
IV
35.4%
B/E move
2.4%
Puts
Pseudo strike
20.00
IV
58.7%
B/E move
3.4%

55Δ

Calls
Pseudo strike
19.77
IV
36.2%
B/E move
2.1%
Puts
Pseudo strike
20.20
IV
56.2%
B/E move
2.9%

60Δ

Calls
Pseudo strike
19.61
IV
36.9%
B/E move
1.9%
Puts
Pseudo strike
20.39
IV
53.6%
B/E move
2.4%

65Δ

Calls
Pseudo strike
19.44
IV
37.7%
B/E move
1.6%
Puts
Pseudo strike
20.58
IV
51.1%
B/E move
1.9%

70Δ

Calls
Pseudo strike
19.28
IV
38.4%
B/E move
1.3%
Puts
Pseudo strike
20.77
IV
48.5%
B/E move
1.5%

75Δ

Calls
Pseudo strike
19.12
IV
39.2%
B/E move
1.1%
Puts
Pseudo strike
20.96
IV
46.0%
B/E move
1.0%

80Δ

Calls
Pseudo strike
18.92
IV
39.1%
B/E move
0.8%
Puts
Pseudo strike
21.29
IV
46.4%
B/E move
0.7%

Options history

IV · four-Friday blend49.69%
Daily close
BITI36.5%47.5%58.5%2026-08-20: 56.95%2026-08-21: 51.30%2026-08-24: 50.36%2026-08-25: 47.82%2026-08-26: 46.79%2026-08-27: 47.82%2026-08-28: 42.81%2026-08-31: 43.81%2026-09-01: 43.74%2026-09-02: 42.20%2026-09-03: 42.93%2026-09-04: 43.75%2026-09-08: 41.85%2026-09-09: 48.48%2026-09-10: 45.04%2026-09-11: 45.68%2026-09-14: 45.24%2026-09-15: 45.59%2026-09-18: 38.91%2026-09-21: 43.53%2026-09-22: 42.89%2026-09-23: 41.89%2026-09-24: 41.56%2026-09-25: 39.97%2026-09-28: 39.24%2026-09-29: 39.00%2026-09-30: 41.07%2026-10-01: 38.50%2026-10-02: 39.56%2026-10-05: 37.98%2026-10-06: 39.12%2026-10-07: 39.38%2026-10-09: 38.48%2026-10-12: 41.45%2026-10-13: 39.68%2026-10-14: 40.79%2026-10-15: 48.06%2026-10-16: 46.00%2026-10-19: 47.98%2026-10-20: 48.62%2026-10-21: 45.30%2026-10-22: 47.56%2026-10-23: 49.16%2026-10-26: 49.55%2026-10-27: 47.25%2026-10-28: 45.77%2026-10-29: 44.62%2026-10-30: 49.69%Aug 20Sep 25Oct 30
48 observations2026-08-20 — 2026-10-30
Table
DateIV (%)
56.95%
51.30%
50.36%
47.82%
46.79%
47.82%
42.81%
43.81%
43.74%
42.20%
42.93%
43.75%
41.85%
48.48%
45.04%
45.68%
45.24%
45.59%
38.91%
43.53%
42.89%
41.89%
41.56%
39.97%
39.24%
39.00%
41.07%
38.50%
39.56%
37.98%
39.12%
39.38%
38.48%
41.45%
39.68%
40.79%
48.06%
46.00%
47.98%
48.62%
45.30%
47.56%
49.16%
49.55%
47.25%
45.77%
44.62%
49.69%