Institutional-grade crypto analytics, data and research for digital assets. Next-gen intelligence for next-gen markets. t.me/blockscholes docs.blockscholes.com
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📊 BlockScholes Data: Cross-Exchange Options Volume Update
Across three exchanges over the past week.
📎 See our data plans and subscribe here:
console.blockscholes.com/pro…
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🟠 BTC: Daily turnover ranged $1.8B-$14B, peaking at $14B on 21 Sep as spot rallied from $81.2K to $87.0K into quarterly expiry. Calls led at 57% of volume, concentrated in front-dated strikes.
💎 ETH: Daily turnover ranged $816M-$1.9B, peaking at $1.9B on 21 Sep — the same session as the BTC rally into quarterly expiry. Calls and puts were close to evenly split.
🟣 SOL: Daily turnover ranged $42M-$318M over the past week, peaking at $318M on 18 Sep. Calls took the larger share at 58% of volume.
🔷 HYPE: Daily turnover ranged $22M-$107M over the past week, peaking at $107M on 18 Sep. Puts took the larger share at 62% of volume.
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📊 Daily Comment | 25 Sep
New York takes Polymarket to court over gambling rules.
⚖️ $100K+ sought: NY alleges Polymarket runs an unlicensed gambling business
📉 5.5%: 30Y Treasury yield nears a level last seen in 2004; 10Y at 5.21%
🏦 $4.08B of a $6B target bought in the Treasury's latest bond buyback
🪙 3 onchain portfolio tokens from Ondo, built on BlackRock model portfolios
📲 blockscholes.com/premium-res…
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📊 Block Scholes Implied Volatility Index (BSIV) | 25 September 2026
30-day constant maturity · BTC · ETH · SOL
🟠 BTC: 37.8% (▲ 1.4 pts · 7d)
🟣 ETH: 52.1% (▼ 0.3 pts · 7d)
🟢 SOL: 59.7% (▼ 1.4 pts · 7d)
🏦 30Y Treasury yield jumped ~8bps to nearly 5.5%, a 2004 high, as the bond selloff deepened
📉 The move isn't reaching crypto: BTC ranged $83K–85K, 30d vol near the low end of its range
📲 Crypto vol & risk signals: t.me/blockscholes
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Block Scholes retweeted
15-minute markets are the ceiling on @Kalshi, @Polymarket, @coinbase and @RobinhoodApp. @DeepBookonSui just shipped 1-minute markets alpha, fully on-chain, on #Sui. Very Soon, CEXs will use DeepBook as their prediction backend.
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📊 Crypto Risk Appetite | 24 Sep
BTC risk appetite is easing off its September high.
📉 1.24: BTC Risk-Appetite Index, down from 1.36 on 19 Sep
🏦 73%: Fed funds futures odds of another rate hike in October
📈 5Y, 10Y, 30Y: Treasury yields all near levels last seen in 2007
💎 4 days: straight net inflows into spot Ethereum ETFs
📲 blockscholes.com/premium-res…
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📊 Daily Comment | 24 Sep
The US 5Y Treasury yield passed its 2023 peak after a weak $70B auction.
📈 5.03%: 5Y yield, up 20bps, above the 2023 high of 4.99%
🏦 75.3%: odds of an Oct Fed hike, up from 55.4% a week ago
₿ -2.69%: BTC over 24h, back below $84K after a rally through $87K
⛏️ $140M: Hut 8's winning bid for Poolin's two Texas sites
📲 blockscholes.com/premium-res…
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📊 Block Scholes Implied Volatility Index (BSIV) | 24 September 2026
30-day constant maturity · BTC · ETH · SOL
🟠 BTC: 40.0% (▲ 1.8 pts · 7d)
🟣 ETH: 55.4% (▲ 0.2 pts · 7d)
🟢 SOL: 63.3% (▼ 3.4 pts · 7d)
🏦 5Y yield jumped 20bps to 5.03% (highest since 2006) on a weak $70B auction; 10Y hit 5.13%, a 2007 high
📉 Crypto fell with equities — BTC back under $84K, S&P −0.75% — unwinding the run through $87K
📲 Crypto vol & risk signals: t.me/blockscholes
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🚀 Block Scholes has made the Top 50 of the TOKEN2049 NEXUS Startup Competition
🌍 From 1,000+ applicants worldwide, a review committee picked the 50 most promising early-stage crypto and Web3 startups
📊 We're proud to be among them. It shows that institutional-grade derivatives data and oracle infrastructure is what the market needs
🇸🇬 See you in Singapore, 7–8 October
👉 token2049.com/singapore/nexu…
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📊 Block Scholes Risk Appetite Index | 23 September 2026
Crypto risk signal · BTC · ETH · SOL · HYPE
🏦 US bank stocks fell 3%+ (JPMorgan, BofA, Wells Fargo) as the yield curve flattened after the Fed's hike
📊 Crypto risk appetite stayed Strong across all four majors, but eased a 2nd day — momentum cooling
📲 Crypto vol & risk signals: t.me/blockscholes
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📊 Daily Comment | 23 Sep
Binance took a $100M stake in Circle and signed a five-year USDC deal.
🤝 1.24M Circle shares at $80.84 each, with a 2-year lock-up
🏦 Fed's Collins and Barkin back last week's hike: inflation risks outweigh jobs
🇨🇦 6 largest Canadian banks explore a CAD tokenised deposit system
🇪🇺 18M Raiffeisen clients to get crypto access via Bitpanda
📲 blockscholes.com/premium-res…
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📊 Block Scholes Implied Volatility Index (BSIV) | 23 September 2026
30-day constant maturity · BTC · ETH · SOL
🟠 BTC: 41.0% (▼ 0.3 pts · 7d)
🟣 ETH: 55.5% (▼ 1.9 pts · 7d)
🟢 SOL: 63.8% (▼ 2.6 pts · 7d)
🛢️ Brent fell a 6th straight day below $100 after Trump cited a "very good" US–Iran meeting
🖥️ Nasdaq-100 hit a record high on chips; BTC held $86K–87K and 30d crypto vol eased further
📲 Crypto vol & risk signals: t.me/blockscholes
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📊 Crypto Derivatives Analytics | 22 Sep
BTC briefly topped $86K, but options traders didn't chase it.
📉 6%+ → neutral: short-dated BTC 25Δ skew spiked on the break of $81K, then faded into $86K
⚡ 39% → 56%: ETH 7-day IV over the weekend; BTC short-dated IV up 15+ pts
🟣 3%: ETH 7-day skew still leans to calls, with spot +8.89% on the week
💵 $999M: largest 1-day spot BTC ETF inflow since Oct 6, 2025
📲 blockscholes.com/research
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📊 Daily Comment | 22 Sep
Spot BTC ETFs recorded their largest daily inflow since October 2025.
💰 $999.0M into spot BTC ETFs on Monday, the most since Oct 6, 2025, as BTC topped $86K
📉 4.95%: 10Y Treasury yield, down from 5.01% after crossing 5% for the first time since 2023
🏦 3.75%-4%: still "on the accommodative side", per St. Louis Fed's Musalem
🔷 5.98M ETH: Bitmine now holds more than 4.9% of ETH supply
📲 blockscholes.com/premium-res…
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📊 Block Scholes Implied Volatility Index (BSIV) | 22 September 2026
30-day constant maturity · BTC · ETH · SOL
🟠 BTC: 40.9% (▼ 1.3 pts · 7d)
🟣 ETH: 54.7% (▼ 3.1 pts · 7d)
🟢 SOL: 67.5% (▲ 1.8 pts · 7d)
🏦 Spot BTC ETFs drew $999M yesterday — largest single-day since Oct 6 — as BTC cleared $86K
📉 Yet 1-mo OTM BTC call premium fell ~6%→0% on the $81K–$86K move: options didn't chase it
📲 Crypto vol & risk signals: t.me/blockscholes
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📊 Altcoins Analytics | 21 Sep
Zcash is drawing the strongest ETF demand of any altcoin.
🛡️ 1.45% of ZEC's market cap in 20-day ETF inflows, about four times ETH and SOL
📈 88% ZEC rally since its ETF launched on 25 Aug, vs 14% for SOL and 2% for BTC
💵 $98.2M into Grayscale's ZCSH last week, all five days positive; ETH ETFs lost $140M
🌡️ 54% of top-50 alts beat BTC over 90 days, up from 36% a week ago
📲 blockscholes.com/premium-res…
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📊 Block Scholes Risk Appetite Index | 21 September 2026
Crypto risk signal · BTC · ETH · SOL · HYPE
Hyperliquid's HYPE token set a record high near $96 today, days after it opened borrowing against HYPE and Bitcoin collateral, while Bitmine added another 27,562 ETH last week to reach 5.98 million — 98% of its goal to hold 5% of Ether's supply.
On the macro calendar, Chicago Fed President Austan Goolsbee speaks today, opening a week heavy with Fed commentary before Friday's core PCE — the Fed's preferred inflation gauge and the first major reading since last week's rate hike.
📲 Crypto vol & risk signals: t.me/blockscholes
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