Airlines are among the companies which have been hardest hit by the coronavirus outbreak, with many lining up to warn about how the big drop in the number of people traveling will hit profits.
Their share prices have responded accordingly, plummeting as investors seek out less risky stocks to protect their capital.
Given how many airlines are cancelling flights and reducing capacity, and given how many countries are starting to issue travel bans - the latest being Donald Trump's banning travel from 26 European countries to the US - you might think this would be the perfect time to sell.
Apparently not, if trades by some company directors are anything to go by.
One of today's big fallers is British Airways owner International Consolidated Airlines (IAG), down over 9% to 359p as most of its airlines ply transatlantic routes from Europe to the US.
Yet Javier Sanchez-Prieto, chairman of chief executive of IAG's Spanish budget airline Vueling, bought 70,000 of the company's Madrid-listed shares this week at €4.60 each, for a total of €322,000.
Javier Ferrán, a non-executive director at IAG who is also chairman of drinks giant Diageo (DGE), bought 85,900 shares at €4.67 each, worth just over €400,000.
IAG shares have tumbled significantly since the coronavirus outbreak worsened, having began the year around the 630p mark while the Spanish-listed shares traded at €7.70 in January.
Meanhile the boss of low-cost Hungarian airline Wizz Air (WIZZ), Jozsef Varadi, has bought 20,000 shares at £32.16 each, for a total sum of £643,200.
Wizz Air is another carier whose shares have dropped sharply since the start of the year, when its share price almost touched £45.
Away from the airlines, Melrose Industries (MRO) executive vice chairman and co-founder David Roper used a dip in the company's share price to snap up over 540,000 shares at around 183p each, in a transaction totaling just under £1m.
Turnaround specialist Melrose, which buys underperforming manufacturers, improves them then sells them on, reported strong full year results last week with strong growth in revenue and profit.
But that hasn't been enough for it to avoid being caught up in the market sell-off, with its share price dropping to 155p today against 245p a month earlier.
Some big sellers this week include bosses at mining giant Anglo American (AAL).
Chief executive Mark Cutifani sold over 200,000 shares at £19.42 each for a total of almost £4m, while technical director Tony O'Neill offloaded over 127,000 shares at the same price, netting just under £2.5m. Both sold shares for tax reasons.
For a full list of the week's biggest director deals, click here.
