Remember BrainChip Holdings Ltd (ASX: BRN) shares?
This ASX artificial intelligence company was all the rage with investors earlier this year. The company made headlines when it rocketed more than 200% in value between 31 December last year and 19 January.
But the BrainChip share price has given investors a far more disappointing performance since this extraordinary start-of-year rally.
Even the half-year earnings released last month didn't seem to move the BrainChip share price. As we covered at the time, this saw the company report a pleasing 529% rise in revenues to US$4.83 million. Although it also reported an operating loss of U$8.56 million.
So what is the highest BrainChip shares have ever been? And how does that compare with the company's current share price?
That's what we'll be checking out today.

Image source: Getty Images
What and when was BrainChip shares' last high?
So BrainChip shares last saw an all-time high back in January this year, as you might have gathered from our earlier discussion. The company's all-time high indeed came and went on 19 January.
This trading session saw the BrainChip share price hit a high of $2.34 a share. That remains both the company's reigning 52-week and all-time record high.
In a sign of the volatility that was influencing the BrainChip share price at the time, that same day also saw BrainChip's record closing high. But this was $2.13 a share, quite a long way from the $2.34 that BrainChip shares saw earlier that same trading day.
Today, the BrainChip share price is trading at 92 cents at the time of writing, 1.66% for the trading day thus far.
This share price represents a painful 60.7% drop from the company's all-time high in January.
But it's not all bad news. Despite this fall, BrainChip shares remain up a healthy 35.3% in 2022 thus far. Over the past 12 months, the company is up an even more pleasing 87.7%.
And any investor lucky enough to buy into BrainChip during the worst of the coronavirus-induced share market crash back in April 2020 would be looking at gains worth an extraordinary 2,150% on today's pricing.
At the current BrainChip share price, this ASX artificial intelligence share has a market capitalisation of $1.58 billion.