However, for analysts tracking the sector, the rally just ahead of the monthly expiry of the May series of Futures and Options (F&O) contracts, was in the offing for some time.
“Bank stocks had collapsed drastically at the bourses. Expecting them to remain weak, people built massive short positions in the banking counters during the previous fortnight. These positions are now being covered ahead of the expiry today,” says Nandish Shah, technical and derivative analyst at HDFC Securities.
He explains that Nifty Bank Futures added massive 30 per cent in open interest (OI) on May 22, which led to a contraction in the discount (in value) from 90 points to 63 points which indicates that certain investors created long positions at lower levels. “Sensing this, traders went short. On the technical charts, Bank Nifty has made a ‘Double Bottom’ pattern at around 17,000 levels on May 22, which indicated that a rally was bound to happen... Once the index crossed 17,600, which was the major resistance level, the index moved higher sharply on short covering” he says.