When President Trump or another celeb buys a stock, here is the one investing ru

When the prez hits the buy button on a stock, it's best to zoom out and keep things in perspective.

"I think it's an idea generator. Do not confuse this purchase with conviction. You don't know why he bought it," Portfolio Wealth Advisors chief investment officer Lee Munson said on Yahoo Finance's Opening Bid (video above).

"And remember, you never know when they're going to sell that stock. And so you have to do your own research because you can't coattail. You maybe can on the entry point, but you never know about the exit."

The reminder comes as Taser maker Axon's (AXON) stock gained 10% on Monday following federal disclosures that President Trump purchased between $1 million and $5 million of its shares back in February.

Weeks after President Trump bought the shares, Immigration and Customs Enforcement sought out a $220-million Taser deal with Axon. A CNBC report suggests the product descriptions are specific to Axon, but ICE has not yet awarded the contract.

There is no evidence Trump was involved in or had knowledge of the procurement process.

Shares of Axon rose another 6.5% on Tuesday.

Which brings up this investing reminder: Find great stocks before prominent people

Fuente original: Yahoo Finance (https://finance.yahoo.com/markets/article/when-president-trump-or-another-celeb-buys-a-stock-here-is-the-one-investing-rule-to-follow-163701893.html)