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Rigel Pharmaceuticals RIGL

US equityMarket cap rank #3311Biotechnology
$47.99 +$1.88 (+4.08%)
Pre-market · Oct 8, 8:40 am ET · After hours $47.00 -2.06%
Open$45.64
Prev close$46.11
Day range$45.22 – $48.15
Volume232.6K
Market cap$896.45M
P/E (TTM)2.8
Dividend yield–

Average implied volatility across the listed chain right now: 87%. 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.

Open interest by strike

3036384042444648506065CallsPuts

Nearest listed expiry only. Calls above the line, puts below — clusters mark strikes where the market has built up the most open positions.

Implied volatility by strike

-15%44%102%161%304365CallsPuts

The “volatility smile”: strikes far from the current price often price in richer implied volatility than at-the-money strikes.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $48.00 $1.56 $0.00/$4.90 0 0 53%
16 Oct 2026 $47.00 $2.02 $0.00/$4.00 0 4 50%
16 Oct 2026 $49.00 $1.11 $0.00/$2.80 0 4 53%
16 Oct 2026 $46.00 $2.55 $0.50/$4.90 0 1 52%
16 Oct 2026 $50.00 $0.66 $0.00/$2.10 0 90 48%
16 Oct 2026 $45.00 $2.84 $1.00/$4.90 1 22 0%
16 Oct 2026 $44.00 $3.74 $2.00/$6.30 16 18 43%
16 Oct 2026 $43.00 $4.32 $3.00/$7.00 0 4 0%
16 Oct 2026 $42.00 $5.02 $3.50/$7.60 0 1 0%
16 Oct 2026 $41.00 $5.79 $4.50/$9.00 0 1 0%
16 Oct 2026 $55.00 $0.21 $0.00/$0.60 0 31 66%
16 Oct 2026 $40.00 $6.60 $5.50/$9.90 0 16 0%
16 Oct 2026 $39.00 $7.47 $6.50/$10.40 0 0 0%
16 Oct 2026 $38.00 $8.36 $7.50/$11.90 0 0 0%
16 Oct 2026 $37.00 $9.29 $8.50/$12.40 0 0 0%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $48.00 $3.39 $0.05/$4.90 0 0 86%
16 Oct 2026 $47.00 $2.84 $0.00/$4.90 0 1 116%
16 Oct 2026 $49.00 $3.93 $0.70/$4.90 0 0 78%
16 Oct 2026 $46.00 $2.37 $0.30/$1.75 0 4 66%
16 Oct 2026 $50.00 $4.48 $1.40/$5.00 0 1 70%
16 Oct 2026 $45.00 $1.91 $0.00/$4.30 0 1 114%
16 Oct 2026 $44.00 $0.45 $0.00/$1.45 3 9 64%
16 Oct 2026 $43.00 $1.14 $0.00/$4.90 0 0 109%
16 Oct 2026 $42.00 $0.85 $0.00/$4.90 0 6 108%
16 Oct 2026 $41.00 $0.61 $0.00/$4.90 0 1 106%
16 Oct 2026 $55.00 $9.05 $5.70/$9.50 0 0 92%
16 Oct 2026 $40.00 $0.43 $0.00/$1.70 0 13 104%
16 Oct 2026 $39.00 $0.29 $0.00/$4.90 0 2 103%
16 Oct 2026 $38.00 $0.19 $0.00/$4.70 0 0 102%
16 Oct 2026 $37.00 $0.12 $0.00/$4.70 0 0 101%

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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