Lyft has had a wild ride of late. The ride-hailing app company launched its IPO on Friday, March 29, with a valuation that rose from .3 billion to .6 billion and a share price of .24 — 21% above its IPO offer of . By the close of trading on Monday last week, amid skepticism from analysts, its share price had fallen to around , and its valuation plummeted to .8 billion . It has since inched up to about with a market capitalization of billion. Several other tech companies are poised for IPOs in the coming months, including Lyft’s bigger rival Uber – reportedly at a valuation of $120 billion — online hospitality platform Airbnb, image search site Pinterest and food delivery company Postmates . As investors wait for those IPOs, checks in hand, they need to cautiously consider if the pricing models for the companies in question are sustainable after customer-acquisition discounts wear off, and growth decelerates as they get bigger, according to experts.…