Category: Finance & Psychology · India | Read Time: 4 min
Last week, while watching the BSE Sensex drop nearly 1,200 points in a single session, I noticed something odd in the financial chatter online. Alongside the serious analysis — oil prices, Strait of Hormuz tensions, algorithmic sell-offs — a different kind of comment kept appearing.
“Phalguna Purnima energy.” “Full moon, what do you expect.” “Classic Holi week volatility.”
Some of it was clearly tongue-in-cheek. Some of it, I’m not so sure. And the more I thought about it, the more I realized the interesting question isn’t whether the full moon actually moved the markets. It’s why otherwise rational people keep reaching for that explanation when things go sideways.
The Crash Had Real Reasons. That’s Not the Point.
To be clear about what actually happened: the sell-off had concrete triggers. Rising oil prices, escalating geopolitical tension near the Strait of Hormuz, supply chain anxiety — real things, with real consequences for markets. Analysts had plenty of hard data to work with.
And yet the full moon comments kept coming.
Not from astrologers. From traders. From people who, five minutes earlier, had been discussing crude futures and FII outflows with complete fluency.
That gap — between what people know is causing something and what they reach for to explain it — is the actually interesting thing here.
What the Brain Does Under Financial Stress
There’s a psychological concept called the Somatic Marker Hypothesis that I think explains this better than dismissing people as superstitious.
The basic idea is that under pressure, the brain doesn’t have time to run through every logical possibility. Instead it leans on emotional shortcuts — gut feelings built from past experiences — to make sense of what’s happening fast. When markets drop suddenly and sharply, the brain isn’t calmly processing macroeconomic data. It’s stressed, it’s scanning for patterns, and it’s trying to find a story that makes the chaos feel less random.
A 1,200-point crash happening on Phalguna Purnima, on a Friday the 13th, in the middle of Holi week? That’s a lot of pattern-shaped material for a stressed brain to work with. It doesn’t matter that the correlation is meaningless. The brain doesn’t need the story to be true. It needs the story to exist.
Why Randomness Is the Thing We Actually Can’t Handle
Here’s the deeper discomfort underneath all of this: markets can collapse without warning. Complex geopolitical forces do interact in ways nobody can fully predict. The global economy is a system of thousands of moving parts, and even the best analysts get blindsided regularly.
That’s genuinely frightening when real money is involved.
Psychologists call our discomfort with this the Illusion of Control — the very human need to believe that events, even bad ones, follow rules we can understand. Astrology, lunar cycles, auspicious and inauspicious dates — these aren’t believed in because they’re proven. They’re reached for because they offer structure. A framework where the crash isn’t random but scheduled. Part of a cosmic rhythm that, if you understand it, you can anticipate.
That’s not stupidity. That’s a nervous system trying to find footing in freefall.
The Full Moon Didn’t Move the Markets. But It Did Something Else.
The Sensex will recover, or it won’t, based on oil supply decisions and geopolitical outcomes and the behavior of institutional investors. Phalguna Purnima had nothing to do with it.
But the fact that people reached for it — even briefly, even as a half-joke — says something worth sitting with. That in a world where markets are increasingly dominated by algorithms none of us fully understand, moving at speeds no human can track, with consequences that feel enormous and arbitrary, the urge to look up at the full moon and say ah, that’s why isn’t irrational.
It’s just very, very human.
