Thank you. As a beginner, the only fool tool I have is $ cost averaging. Yet having been eager to make incremental nominal investments, felt the push of the market per @wakaflockasy46's comment. Your graph offers a more visual and for me visceral perspective. I'll hold out and maybe buy a few quid's worth of litecoin or something for now instead - though the whole crypto market appears to be flying without a tether currently...!