US Stocks | Knowledge Session | September 24
📊 VIX Fear Index: the market’s thermometer
Lesson 1 from New Cai Cai——learn how to read the VIX.
The VIX stands for the Chicago Board Options Exchange Volatility Index. In the streets, it’s nicknamed the “fear index.” You can think of it as a thermometer the Wall Street uses to measure the whole market’s temperature:
🌡 How to read the thermometer?
- VIX < 15: the market is extremely calm—everyone is slacking off, sipping tea
- VIX 15–20: normal conditions, some minor scuffles
- VIX 20–30: getting tense—the market is on edge
- VIX > 30: panic! everyone is looking for an exit
- VIX > 40: stock-crash level—1929, 2008, and 2020 are all in this range
📉 Today’s “temperature”: 14.86
During the day, the VIX dropped to 14.86—the market is nearly asleep. So what happened? The three major indices all rose: Nasdaq +0.56%, Google +3.31%, Tesla +3%. The entire market felt like “time is peaceful and stable.”
🔗 What’s the relationship between the VIX and BTC?
On the surface, the VIX measures the S&P 500’s expected volatility. But all the old hands in crypto know a pattern:
✅ Low VIX (<18) + a weaker dollar = risk assets welcome in—BTC is likely to move up with it
✅ VIX spikes (>25) + tighter liquidity = BTC is often hit unfairly—more likely to fall than to rise
Today, with VIX staying low, BTC rebounded to $86,595. Even IBIT (BlackRock’s BTC ETF) rose +1.78%. This is a classic “risk-on preference returns” resonance.
⚠ But the counterintuitive thinking from Old Cai Cai
A low VIX often means calm before the storm. Historical experience:
- In August 2024, VIX surged to 38 (the blow-up of an arbitrage trade); BTC fell from 65k to 49k
- In April 2025, tariff panic pushed VIX to 60; BTC was cut in half straight away
When everyone says the VIX is so low and so reassuring, you should actually be alert—after extreme calm often comes extreme volatility.
💡 Practical advice
1. The first thing you check every day at market open: VIX. It reflects sentiment earlier than any candlestick chart.
2. If VIX suddenly jumps from 15 to 20+, don’t get greedy—reduce positions first.
3. When VIX falls back from 35+, once market panic is cleared, it often turns into a buying opportunity.
4. BTC traders especially should watch VIX—if US stocks twitch, the crypto world shakes.
📌 What to watch today
VIX 14.86 + IBIT +1.78% + BTC rebound = short-term risk appetite recovering. But geopolitics + the interest-rate decision are still on the way—don’t get carried away. With BTC at 86k, until it breaks the previous high, it doesn’t count as a reversal.
#美股知识 #VIX恐慌指数 #BTC
📊 VIX Fear Index: the market’s thermometer
Lesson 1 from New Cai Cai——learn how to read the VIX.
The VIX stands for the Chicago Board Options Exchange Volatility Index. In the streets, it’s nicknamed the “fear index.” You can think of it as a thermometer the Wall Street uses to measure the whole market’s temperature:
🌡 How to read the thermometer?
- VIX < 15: the market is extremely calm—everyone is slacking off, sipping tea
- VIX 15–20: normal conditions, some minor scuffles
- VIX 20–30: getting tense—the market is on edge
- VIX > 30: panic! everyone is looking for an exit
- VIX > 40: stock-crash level—1929, 2008, and 2020 are all in this range
📉 Today’s “temperature”: 14.86
During the day, the VIX dropped to 14.86—the market is nearly asleep. So what happened? The three major indices all rose: Nasdaq +0.56%, Google +3.31%, Tesla +3%. The entire market felt like “time is peaceful and stable.”
🔗 What’s the relationship between the VIX and BTC?
On the surface, the VIX measures the S&P 500’s expected volatility. But all the old hands in crypto know a pattern:
✅ Low VIX (<18) + a weaker dollar = risk assets welcome in—BTC is likely to move up with it
✅ VIX spikes (>25) + tighter liquidity = BTC is often hit unfairly—more likely to fall than to rise
Today, with VIX staying low, BTC rebounded to $86,595. Even IBIT (BlackRock’s BTC ETF) rose +1.78%. This is a classic “risk-on preference returns” resonance.
⚠ But the counterintuitive thinking from Old Cai Cai
A low VIX often means calm before the storm. Historical experience:
- In August 2024, VIX surged to 38 (the blow-up of an arbitrage trade); BTC fell from 65k to 49k
- In April 2025, tariff panic pushed VIX to 60; BTC was cut in half straight away
When everyone says the VIX is so low and so reassuring, you should actually be alert—after extreme calm often comes extreme volatility.
💡 Practical advice
1. The first thing you check every day at market open: VIX. It reflects sentiment earlier than any candlestick chart.
2. If VIX suddenly jumps from 15 to 20+, don’t get greedy—reduce positions first.
3. When VIX falls back from 35+, once market panic is cleared, it often turns into a buying opportunity.
4. BTC traders especially should watch VIX—if US stocks twitch, the crypto world shakes.
📌 What to watch today
VIX 14.86 + IBIT +1.78% + BTC rebound = short-term risk appetite recovering. But geopolitics + the interest-rate decision are still on the way—don’t get carried away. With BTC at 86k, until it breaks the previous high, it doesn’t count as a reversal.
#美股知识 #VIX恐慌指数 #BTC