I invest in mutual funds and ETFs with Fidelity. This post is about the best performing mutual fund that I have found to date.
I've not been investing with Fidelity for long (since May 21) - but I've hit some luck with one mutual fund in particular. It is the Legal & General Global Technology Index Trust R Acc (LGTXA). The following table provides a summary of its performance since I've held it.

As can be seen, its increased nearly every month since I've held it, except over September. However, bear in mind that everything was down over September. To 1st of Nov 21 it has provided me with an eqiv APR of 42.47%, which is quite impressive compared to what I would have got with just putting money in the bank (0.1% APR at best).
It does not pay dividends, its dividends are reinvested into the fund (hence the Acc in the fund title - for accumulation), hence increasing the fund value - which is does annually, with the ex-div date usually falling in August.
It is mostly a tracker fund, which tracks the performance of the FTSE World Technology Index (the providers say it will have atleast 90% exposure to assets in that index). As it is a tracker its charges are quite low, with an ongoing charge of just 0.32% (which is another bonus).
When looking at what is included in the fund it mostly comprises tech stocks from the US (78.13%).

The top stocks it contains are not that surprising:

The fund has also had consistent performance over the last 5 years - it didnt even take that much of a hit due to Covid - which is quite impressive:

Since starting to invest in it, I've continued to buy more due to its performance, such that it now makes up about 11% of my portfolio with Fidelity. I do believe in spreading my investments in order to reduce the risk of one item bombing - but I will continue to buy more LGTXA if it continues at this rate (and probably work up towards around a 15% portfolio holding).
When it comes to Mutual Funds and ETFs, I'm still fairly new to the game, so I'd appreciate any suggestions of other good funds and ETFs offered by Fidelity, so that I can look into them as potential prospects for investment.
The graphs and graphics are provided from the Fidelity website - the excel table at the top is my own.
Links:
Investing with Fidelity International - this link might be for those based in the UK only.