You're probably best to go for a casein based protein to prevent catabolism and cortisol build up, maximuscle products focus on poor quality ingredients usually and are mainly whey based. Casein proteins stay in the system for 4 hours + whereas whey protein only provide the muscle with amino acids for 45 mins- hour. If possible get a whey protein for straight after workouts, and a casein based protein for pre workout and throughout the rest of the day if you miss a meal. Reflex products are of the highest quality when buying in the UK and are good value for money.
Being a trader does lead to increased stress levels at times which raise the muscle wasting hormone cortisol, this can be avoided with glutamine supplementation(an amino acid), this however isn't as important as a regular protein intake.
Hope this helps