You should not have a personal mandate on how many stocks you hold. You will restrict what you can do.
Imagine you tell yourself to only hold 10 stocks. One day another stock suddenly become a great bargain what will you do? Liquidate an existing stock just to add this bargain? When that liquidated stock could be a bargain as well.
Instead, another way is you could add this great bargain too to your portfolio (if you have spare cash). Then have a plan after that to trim holdings maybe? Like if it run up 50% with no apparent reason can consider to sell and add more to your current holdings.
The thing is, don't be jealous about those people who all in on one stock and it become a multi-bagger. There are a lot of people who did the same but see their holdings get wiped out. Most are no longer on this forum also anyway since once you wipe out your money you are unlikely to continue investing anymore.
If you throw all your money into one stock but lose sleep then its not worth also. Definitely if you diversify more then your overall portfolio will only be at best growing slowly since if one stock suddenly run up your overall portfolio gets pulled back by the laggards. But at least its steady?
Always remember to DYODD....

Alibaba Group Holding Limited (BABA) June Quarter 2021 Earnings Conference Call is scheduled at 7:30 pm SGT and 7:30 am ET on August 3. You can watch the livestream by subscribing to it.
 
Sales and Revenue
“Alibaba achieved a historic milestone of one billion annual active consumers globally in the fiscal year ended March 2021,” said Daniel Zhang, Chairman and CEO of Alibaba Group. In the March quarter of 2021, Alibaba's revenue was RMB187,395 million (US$28,602 million), an increase of 64% year-over-year. Excluding the consolidation of Sun Art starting in October 2020, Alibaba's revenue would have grown 32% year-over-year to RMB674,420 million (US$102,937 million).
Annual active consumers on our China retail marketplaces was 811 million for the twelve months, an increase of 32 million from the twelve months ended December 31, 2020.
Earnings Preview
According to 21 analysts' estimates on Yahoo Finance, the average revenue forecast of the June quarter stands at 32.54B. The growth estimate of current quarter is 1.40%. The consensus EPS forecast for the quarter is $2.24, and the reported EPS for the same quarter last year was $2.06.
What's your view on Alibaba? Feel free to comment below!
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