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Mirum Pharmaceuticals MIRM

US equityMarket cap rank #2052
$81.43 −$1.50 (-1.81%)
Market closed · Oct 5, 8:10 pm ET · Last extended-hours $82.35 +1.13%
Open$83.30
Prev close$82.93
Day range$81.23 – $83.35
Volume980.1K
Market cap$5.29B
P/E (TTM)–
Dividend yield–

Average implied volatility across the listed chain right now: 132%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $80.00 $7.00 $4.70/$9.00 0 1 109%
16 Oct 2026 $85.00 $4.75 $2.15/$6.50 0 2 103%
16 Oct 2026 $75.00 $11.26 $7.70/$12.00 0 0 112%
16 Oct 2026 $90.00 $3.31 $1.00/$4.90 0 38 107%
16 Oct 2026 $70.00 $16.16 $11.70/$15.50 0 1 120%
16 Oct 2026 $95.00 $2.50 $0.00/$2.45 0 56 122%
16 Oct 2026 $65.00 $21.07 $15.70/$20.00 0 0 131%
16 Oct 2026 $100.00 $0.50 $0.00/$2.95 1 40 85%
16 Oct 2026 $60.00 $25.98 $20.70/$24.50 0 0 152%
16 Oct 2026 $105.00 $0.63 $0.00/$0.65 10 79 106%
16 Oct 2026 $55.00 $30.88 $25.20/$29.00 0 0 158%
16 Oct 2026 $110.00 $0.51 $0.00/$2.55 0 29 114%
16 Oct 2026 $50.00 $35.79 $30.20/$34.00 0 0 190%
16 Oct 2026 $115.00 $0.30 $0.00/$4.90 0 41 113%
16 Oct 2026 $45.00 $40.70 $35.20/$39.00 0 0 224%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $80.00 $3.30 $2.50/$5.10 0 3 81%
16 Oct 2026 $85.00 $6.08 $5.00/$8.90 0 26 88%
16 Oct 2026 $75.00 $2.55 $0.50/$4.90 0 6 99%
16 Oct 2026 $90.00 $9.67 $8.50/$12.80 0 74 91%
16 Oct 2026 $70.00 $2.46 $0.00/$4.90 0 1 129%
16 Oct 2026 $95.00 $14.00 $14.00/$17.50 2 12 117%
16 Oct 2026 $65.00 $2.37 $0.00/$4.90 0 0 162%
16 Oct 2026 $100.00 $18.13 $17.00/$20.80 0 65 82%
16 Oct 2026 $60.00 $2.28 $0.00/$4.90 0 1 195%
16 Oct 2026 $105.00 $22.42 $21.50/$26.20 0 53 94%
16 Oct 2026 $55.00 $2.19 $0.00/$4.90 0 29 229%
16 Oct 2026 $110.00 $27.17 $26.50/$30.90 0 14 96%
16 Oct 2026 $50.00 $2.11 $0.00/$4.90 0 4 266%
16 Oct 2026 $115.00 $32.07 $31.50/$35.70 0 26 95%
16 Oct 2026 $45.00 $2.02 $0.00/$4.90 0 7 305%

Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.

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