Today when I saw good opportunities to short the SKF (when it fell off from the peak), for several times, IB held my short orders and told me there is no available stocks for lending and it's trying to locate those stocks ... What happened? Shorting SKF yesterday wasn't so difficult yesterday? In fact it was very smooth yesterday. But yesterday FAS didn't allow me to short too. Maybe I should trade some other more liquid instruments, instead of wasting time on these illiquid ones? Any thoughts? Thanks!