there have most likely been plenty of bigger spikes but this one is pretty good for a highly capitalized company of $1,785m. - a total spike over 7 days of + 35%, and still spiking ......its MSB mesoblast.
I had a bid on this immediately after the announcement that sent it sky rocketing, but my bid was a bit too conservative.......i decided not to chase it ........ also it is just as well I removed the short bid that I had on it also - at least I think I removed it ?
It's a biotec company involved with stem cell research and the development of its products ....