--- type: "Topics" locale: "en" url: "https://longbridge.com/en/topics/39984532.md" description: "$Tesla(TSLA.US)$NVIDIA(NVDA.US) Let me tell you a joke. In March 2025, I hoarded a batch of stock, using several accounts to do it together. I was very confident after buying.At the end of March 2025, I attended a dinner. There was an American, and we talked for a long time about the industry. The final conclusion was that NVIDIA's monopoly was unsustainable and it would be hard for it to continue its glory. Various chip design companies would slowly eat away its market share. That night, I wavered a bit.Starting April 1st, the market didn't look right. Plus, I had a few drinks. On April 2nd, I gritted my teeth and sold all 5,000 shares of NVDA that I bought at a cost of $108 (at $110.21) in one go. I continued holding shares on other platforms.On April 7th, it dropped to a low of $85, further validating my guess. I thought, good thing I sold those 5,000 shares, I was about to open champagne.For two months after April 7th, NVDA rose so much it made me question my life.Roughly calculated at today's closing price, I missed out on about $440,000 in profit.This was the most expensive dinner I've ever had.Therefore, back to the present, in my mind, there are only four types of companies in the US stock market:Cheap good companies,Expensive good companies,Cheap bad companies,Expensive bad companies.We only need to buy cheap good companies and sell them when they start to become expensive. The latter two will crush your account.Buying good companies has two difficulties:1 How do you tell it's a good company?This is a big topic. I think this is also the reason why there are so many influencers in the Longbridge community. You need to make retail investors understand what a good company is.The first step in our stock trading is to understand a company, to know it well enough. Not to look at colorful K-lines, resistance levels, support levels, although the latter is also very important (I admit I'm good at it too), but we can't put the cart before the horse.2 When this good company becomes even cheaper, do you choose to sell or continue holding?Refer to the little story I wrote above.Alright, I wish everyone finds their dream stock and gets what they wish for." datetime: "2026-04-17T02:14:07.000Z" locales: - [en](https://longbridge.com/en/topics/39984532.md) - [zh-CN](https://longbridge.com/zh-CN/topics/39984532.md) - [zh-HK](https://longbridge.com/zh-HK/topics/39984532.md) author: "[钢铁纪律](https://longbridge.com/en/profiles/13301109.md)" --- # $Tesla(TSLA.US)$NVIDIA(NVDA.US) Let me tell you a … ### Related Stocks - [NVDA.US](https://longbridge.com/en/quote/NVDA.US.md) - [TSLA.US](https://longbridge.com/en/quote/TSLA.US.md) - [NVD.DE](https://longbridge.com/en/quote/NVD.DE.md) ## Comments (29) - **龙场悟道忘忧草 · 2026-04-17T15:38:01.000Z**: It's nothing, who hasn't sold too early? It's just that not many people post about it. - **钢铁纪律** (2026-04-17T15:41:41.000Z): Yes, also want to improve a bit. - **退场 · 2026-04-17T10:25:03.000Z · 👍 3**: Every impulsive trade is destined to lose money. - **左多右空 · 2026-04-17T08:16:15.000Z · 👍 1**: Value aside, selling low-priced stocks is inherently problematic, and holding high-priced ones is also a form of arrogance. You might ask what constitutes 'high' or 'low'. If the continuous decline across the entire market at that time wasn't a low point, then when is? - **古德里安的交易员 · 2026-04-17T05:34:32.000Z**: In U.S. stocks, besides short selling, I basically only buy TSMC. - **跟顾神反着买 · 2026-04-17T04:00:48.000Z**: I've also been to this kind of dinner party before 😂 - **跟顾神反着买 · 2026-04-17T03:56:57.000Z**: Sold Google (GOOGL) at 180.70 and missed the rocket to 40. - **钢铁纪律** (2026-04-17T04:00:36.000Z): Well, it's not much better than me either. - **跟顾神反着买 · 2026-04-17T03:56:10.000Z**: Wish we had met sooner, bro. Why couldn't I have come across your content earlier? - **钢铁纪律** (2026-04-17T03:57:37.000Z): I sold too early, what's the use of knowing earlier? - **跟顾神反着买** (2026-04-17T04:16:30.000Z): Use others as a mirror to reflect on and improve yourself. - **钢铁纪律** (2026-04-17T04:19:38.000Z): It's not too late even now. - **旺旺勇闯美股 · 2026-04-17T03:29:38.000Z**: Missing out on rallies is the norm. I just cleared my position in axt last night, and then it skyrocketed. I'm so pissed. - **HydraZen · 2026-04-17T03:20:06.000Z**: Yes, with the right choice, you're already halfway to success. - **洺燕堂413 · 2026-04-17T03:14:19.000Z**: Selling too early is the norm in the stock market😂 - **美股主升浪 · 2026-04-17T02:56:31.000Z · 👍 1**: This story tells us, don't place orders when you're drinking, don't place orders, don't place orders. - **钢铁纪律** (2026-04-17T03:17:55.000Z): Especially Wusu... - **跟顾神反着买** (2026-04-17T05:13:35.000Z): This Wusu is really expensive - **英伟达小菜鸟 · 2026-04-17T02:34:54.000Z**: Boss, you're so impressive. - **FreeBird2025 · 2026-04-17T02:34:25.000Z**: Block which friend, cut ties - **钢铁纪律** (2026-04-17T02:38:12.000Z): Don't know him, an American guy, at a business dinner... - **淡淡定定有钱剩 · 2026-04-17T02:34:12.000Z**: Masayoshi Son and Jensen Huang have also sold NVIDIA too early, and Warren Buffett sold Apple too early. In summary, it's understandable if we also sell too early🤣. - **钢铁纪律** (2026-04-17T02:37:49.000Z): So I've reconciled myself. - **Lucky2026 · 2026-04-17T02:20:18.000Z**: Oh my god, 5000 shares of NVIDIA, I wouldn't even dare to dream about it, truly a rich and powerful boss😎... - **遇。 · 2026-04-17T02:19:14.000Z**: That makes a lot of sense. There are no good companies, only good prices. 😆 - **我的剑也未尝不利 · 2026-04-17T02:17:09.000Z · 👍 1**: Every gift from fate has its price secretly marked. - **赚总** (2026-04-17T02:41:23.000Z): Long ago