An energy-storage leader fell by almost 14% in a day.

In the morning session, Sungrow Power Supply fluctuated and moved lower. As of the time of this release, the stock price was down 13.87%, trading at 97.00 yuan. One large bearish candle left many people dazed.

I’ve been watching this stock since 2015. It’s not exactly a fresh face. Sungrow Power Supply started out making photovoltaic inverters; now it’s one of the largest inverter manufacturers by global shipments. Later, it also developed energy storage systems into a core business. Simply put, whenever a PV power plant needs to convert DC electricity into usable AC electricity, the inverter is the unavoidable link. In the energy storage space, it provides battery systems and energy management solutions for power plants and the grid. In overseas large-scale storage projects, you can often see its name.

So today’s drop isn’t a glitch caused by some small company—it’s one of the most representative players in the industry taking the hit.

Why did it fall? The trading action doesn’t give a clear explanation. I’ve never relied on guessing reasons to get through days when investing. If I had to say, at this level of drawdown, it usually can’t escape a few common scenarios. Either it ran up too much early on—valuation is already high, and as soon as there’s a little breeze, capital rushes for the exits. Or the industry itself is changing—energy storage looks exciting, but the domestic price war is fierce, squeezing gross margins significantly. Overseas may be doing well, but between orders and profits there are still two hurdles: delivery and collection. Or else institutions rebalance their portfolios—when big allocation funds move positions, thinly traded stocks get smashed into a pit.

Which specific one is it? We’ll only know for sure once the announcements and research reports come out. Saying it’s definitely this now would just be making things up.

What I care more about is the reminder this event gives ordinary people.

First, a leader doesn’t equal safety. Many people have a misconception: buying the number one in an industry is safer than buying a miscellaneous bunch. That’s wrong. When the trend reverses, leaders can fall just as sharply as small-cap stocks, or even harder—because institutional holdings are heavy, they get smashed more brutally. You think you’re holding the “big leg,” but in reality you’re holding a whole bunch of people with the same idea.

Second, don’t rush to buy the dip after a single-day plunge. A drop of 13.87% looks like a golden pit, but there may be another pit underneath it. The real bottom isn’t formed by the drop—it’s ground out. Wait until it stabilizes laterally, until volume contracts, and after the ones that need to cut losses have already cut—that’s when talking about opportunities feels much more comfortable than rushing in now.

Third, and this is something I’ve been saying for a long time: position size matters more than judging the direction. If you pick the right direction and you go all-in with full position, one burst of volatility can wash you out. If you pick the wrong direction and keep your position light, you may survive—then you still have a chance to turn things around.

As for its relationship with crypto, some people think it’s not connected. But underneath it’s the same thing: no matter whether it’s energy storage, AI, or Bitcoin, capital is always hunting for the next story. When the story is being talked about the loudest, it’s often closest to a stage peak. Sungrow Power Supply was also a darling a couple of years ago—yet it’s still getting hit now. In the crypto circle, whenever some leading name suddenly flashes and crashes, the logic is almost identical. The difference is only the trading limits on price moves and the trading hours. Human nature never changes.

I’m not giving any buying or selling advice, and I won’t say exactly how it will go from here. All I can say is one sentence: don’t focus on just one headline—watch a whole cycle. One big bearish candle can make you panic. But if you stretch it out on the chart to the monthly line or even the yearly line, what you see isn’t panic—it’s simply the path it was already walking.

The market gives everyone surprises every day. The ones who can live through it aren’t the ones with the fastest reactions—they’re the ones with the most stable position sizing.