Some large Airbnb investors have slashed their internal valuations of the company by more than 30% as the pandemic halts travel

· The home-sharing startup Airbnb was most recently valued at $31 billion in a 2017 funding round.
· It's had its valuation cut by a couple of its investors recently — the mutual-fund managers Principal Global Investors and Hartford Funds.
· The coronavirus pandemic has shut down travel, cutting into Airbnb's revenues and...