How my tips have fared

It has not been a good fortnight for my eight long tips, with all but one declining. US buildingmaterials supplier Builders FirstSource fell from $208 to $184. Kitchen-supplier Howden Joinery declined from 906p to 877p, while recruitment specialist SThree slipped from 430p to 427p.

General Motors dropped down a gear from $45.35 to $42.69, budget airline easyJet descended from 570p to 540p, and SSP, which operates food and drink concessions in airports and train stations, slipped from 219p to 206p.

Rolls-Royce Holdings slid from 428p to 406p. The only exception was investment and sharetrading platform IG Group, which rose from 730p to 736p. My long tips are now making overall profits of £1,445, down from £2,178.

Nevertheless, the good news is that my four short tips all moved in my favour. Solar-energy company Sunrun fell from $13.18 to $10.90, while video-game retail chain GameStop declined from $12.62 to $10.17. Air-taxi firm Joby Aviation descended from $5.36 to $4.68.

Shares in Trump Media & Technology Group not only fell through the $50 barrier, the point at which I suggested that you started shorting them, but have now also lost nearly half their value, sliding to $26.21. Overall, my short tips are making a profit of £2,977, much higher than the £1,627 of two weeks ago.

My combined long and short positions are making profits of £4,422, slightly more than two weeks ago. I now have nine long tips (Howden Joinery; SThree; easyJet; SSP; IG Group; General Motors; Builders FirstSource, Rolls-Royce and Hollywood Bowl).

I also have four open short positions (Sunrun, GameStop, Joby Aviation, Trump Media & Technology Group). I would reduce the level at which you cover your GameStop and Sunrun shorts to $15, down from $19. I would also reduce the level at which you cover the Joby Aviation and Trump Media & Technology Group shorts to $7.50, and $55 respectively.