US Stocks | Knowledge Corner | September 23
# VIX Fear Index: The Calmer the Market, the Closer the Storm?
Today I’ll cover an indicator that many beginners overlook—but veteran “old leeks” watch every day: the VIX Fear Index.
## 1. What exactly is the VIX?
VIX stands for CBOE Volatility Index. In Chinese, it’s called the Chicago Options Exchange Volatility Index. In the trading world, it’s known as the “fear index.”
You can think of it as the market’s thermometer:
- The more panicked everyone is → the higher the VIX (a fever)
- The calmer everyone is → the lower the VIX (healthy)
But there’s an unintuitive point here:
- When the S&P 500 falls, the VIX actually rises
- When the S&P 500 rises, the VIX often falls
So the VIX and the stock market are basically a seesaw relationship.
## 2. Remember a few key thresholds
- VIX < 12: Extremely calm—quiet before the storm; be cautious
- 12–20: Normal fluctuations—everyone’s just working normally
- 20–30: Tense—some people can’t sleep
- 30–40: Panic—howling in the meeting room
- Above 40: Extreme panic—right at moments like 2008 and 2020
## 3. Look at today’s data
Current VIX = 14.21
- Day: -4.44%
- 5 days: -19.8%
What does that mean? Being around 14 already counts as an extremely comfortable zone—lower than normal by a noticeable margin. The market is basically dozing off.
It’s like in a class everyone’s playing with their phones and no one’s studying—either the teacher isn’t around, or a surprise exam is coming right away.
## 4. The relationship between VIX and BTC
Many people think BTC only cares about the U.S. dollar and interest rates. Actually, VIX has a huge impact on crypto:
First, a low-VIX environment (below 15):
- Money dares to move into risk assets
- BTC can gradually climb like a frog in warm water
- But once something goes wrong, rebounds are the strongest (because the shorts aren’t prepared)
Second, a high-VIX environment (above 25):
- All risk assets get sold indiscriminately
- BTC and the Nasdaq fall together
- At that point, cash is king
Third, a rapid VIX surge from low levels:
- This is the real danger signal
- Often it’s a precursor to a “black swan”
- Historical experience: when VIX stays below 15 for a long time, breaking above 25 upward usually means more than 5% of big volatility is coming
## 5. How should we view BTC right now?
BTC is currently at $86,631 (24h +1.17%). The Nasdaq is closed during the same period, but the VIX keeps falling.
The current setup:
- Low VIX → strong risk appetite
- BTC holding above 86k → sentiment is bullish
- But watch out for consensus expectations
A veteran leek’s instinct: when every group chat around you is yelling “bull is back,” it’s actually time to start buckling up.
## 6. Practical advice for crypto players
1. Don’t chase longs with a heavy position when VIX is below 13—your risk-reward ratio is poor, and the upside space has been drained by sentiment.
2. The comfortable zone to buy BTC spot: when VIX is between 18 and 25. The market is panicking, but it hasn’t completely broken down yet. Building positions in batches is the best.
3. Always watch two indicators:
- The VIX value itself
- The 5-day change rate of VIX (a sudden spike is the real signal)
4. The late-September time window: historically, September is one of the weakest months for U.S. stocks. Add to that end-of-quarter rebalancing. If over the past few days the VIX suddenly jumps from around 14 to above 18, don’t rush to bottom-fish yet—wait until things stabilize.
## One-sentence summary
Low VIX is not a buy signal—it’s a signal that you should get ready for the script.
The more confident the market is, the more the veteran leeks should stay alert.
BTC’s script is always opened by the VIX.
-- Shen Nong Notes | Observing the US stocks–crypto linkage
# VIX Fear Index: The Calmer the Market, the Closer the Storm?
Today I’ll cover an indicator that many beginners overlook—but veteran “old leeks” watch every day: the VIX Fear Index.
## 1. What exactly is the VIX?
VIX stands for CBOE Volatility Index. In Chinese, it’s called the Chicago Options Exchange Volatility Index. In the trading world, it’s known as the “fear index.”
You can think of it as the market’s thermometer:
- The more panicked everyone is → the higher the VIX (a fever)
- The calmer everyone is → the lower the VIX (healthy)
But there’s an unintuitive point here:
- When the S&P 500 falls, the VIX actually rises
- When the S&P 500 rises, the VIX often falls
So the VIX and the stock market are basically a seesaw relationship.
## 2. Remember a few key thresholds
- VIX < 12: Extremely calm—quiet before the storm; be cautious
- 12–20: Normal fluctuations—everyone’s just working normally
- 20–30: Tense—some people can’t sleep
- 30–40: Panic—howling in the meeting room
- Above 40: Extreme panic—right at moments like 2008 and 2020
## 3. Look at today’s data
Current VIX = 14.21
- Day: -4.44%
- 5 days: -19.8%
What does that mean? Being around 14 already counts as an extremely comfortable zone—lower than normal by a noticeable margin. The market is basically dozing off.
It’s like in a class everyone’s playing with their phones and no one’s studying—either the teacher isn’t around, or a surprise exam is coming right away.
## 4. The relationship between VIX and BTC
Many people think BTC only cares about the U.S. dollar and interest rates. Actually, VIX has a huge impact on crypto:
First, a low-VIX environment (below 15):
- Money dares to move into risk assets
- BTC can gradually climb like a frog in warm water
- But once something goes wrong, rebounds are the strongest (because the shorts aren’t prepared)
Second, a high-VIX environment (above 25):
- All risk assets get sold indiscriminately
- BTC and the Nasdaq fall together
- At that point, cash is king
Third, a rapid VIX surge from low levels:
- This is the real danger signal
- Often it’s a precursor to a “black swan”
- Historical experience: when VIX stays below 15 for a long time, breaking above 25 upward usually means more than 5% of big volatility is coming
## 5. How should we view BTC right now?
BTC is currently at $86,631 (24h +1.17%). The Nasdaq is closed during the same period, but the VIX keeps falling.
The current setup:
- Low VIX → strong risk appetite
- BTC holding above 86k → sentiment is bullish
- But watch out for consensus expectations
A veteran leek’s instinct: when every group chat around you is yelling “bull is back,” it’s actually time to start buckling up.
## 6. Practical advice for crypto players
1. Don’t chase longs with a heavy position when VIX is below 13—your risk-reward ratio is poor, and the upside space has been drained by sentiment.
2. The comfortable zone to buy BTC spot: when VIX is between 18 and 25. The market is panicking, but it hasn’t completely broken down yet. Building positions in batches is the best.
3. Always watch two indicators:
- The VIX value itself
- The 5-day change rate of VIX (a sudden spike is the real signal)
4. The late-September time window: historically, September is one of the weakest months for U.S. stocks. Add to that end-of-quarter rebalancing. If over the past few days the VIX suddenly jumps from around 14 to above 18, don’t rush to bottom-fish yet—wait until things stabilize.
## One-sentence summary
Low VIX is not a buy signal—it’s a signal that you should get ready for the script.
The more confident the market is, the more the veteran leeks should stay alert.
BTC’s script is always opened by the VIX.
-- Shen Nong Notes | Observing the US stocks–crypto linkage