How traders use the Fear & Greed index
What goes into a Fear & Greed composite, why our build uses VIX (50%), S&P daily change (30%) and BTC (20%), and how to act on extreme readings without becoming a permabear or permabull.
Fear & Greed is a composite sentiment indicator. Below 25 (extreme fear) historically marks tactical buying opportunities; above 75 (extreme greed) marks tactical caution. It is a market mood ring, not a timing tool.
Fear & Greed indices are sentiment composites. They take a handful of liquid market signals, normalise each one to a 0-100 scale, weight them, and produce a single mood number. Done right, they are useful as a regime indicator. Done wrong, they are vibes-as-a-service.
The RockstarMarkets composite uses three live inputs. The VIX gets 50% of the weight because nothing aggregates fear faster than the price of insurance. The S&P 500 daily change gets 30% — strong up days drive greed, sharp down days drive fear. Bitcoin gets 20% — crypto is the highest-beta risk-on asset and it leads sentiment in the speculative tail.
How to use it: not as a signal in isolation, but as a frame. When the index is below 25, the market is in extreme fear. Historically, that has been a better-than-coin-flip moment to add to risk, but only if the underlying fundamentals have not changed. If the fear is driven by something genuinely new (a credit event, a war escalation), the cheap level can get cheaper. If the fear is mean-reverting noise (an earnings miss in one name, an isolated headline), the index gives you permission to do nothing while everyone else panics.
The opposite extreme — above 75 — is more dangerous because greed can persist longer than fear. The 1999 NASDAQ ran in extreme-greed mode for over a year before topping. Use 75+ readings to tighten stops, harvest some gains, and resist the temptation to add to winners on margin.
Read the live composite on the home page; the breakdown shows what each input is contributing right now.
People also ask
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