$Tesla(TSLA.US)$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.