What a week it was in the Sixer Market! A couple of pulsating Test matches unfurled before us with South Africa taking Pakistan close in a three-match T20I series. While Virat Kohli and co continue to decimate England in the second Test, there's more to it in the Sixer Market! As the wait for the resumption of play on Day 3 nears an end, here's a look at all the top performers and underwhelmers over the last week in today's bout of Sixer Market Insight!Bull #1: David Miller (South Africa)David Miller is the undoubted Bull of the Week, and why not? He averaged a match score of 103.98 with his price increasing by a whopping 50.68%, but there's more to his stellar rise. While his performance in the second T20I was on the lines of expectation, his perfect match score of 150 came as a pleasant surprise to many. With South Africa reeling at 48 for 6, not many would have expected them to post a total of 164. In came David Miller, who smashed a blistering 45-ball 85 to reinstate his credentials in the T20I format. Although he did end up on the losing side, Miller's stunning rise places him nicely coming into the much-awaited PSL 2021! Will he be able to continue his fine form in the marquee league as well? Only time will tell!Bear #1: Haris Rauf (Pakistan)Another individual who will be part of the PSL but unlike David Miller, had a poor series last week. Haris Rauf, one of Pakistan's fastest bowlers, could only muster a match score of 24.60, resulting in a 9.51% decrement. He wasn't able to trouble the batsmen with his raw pace and ability to generate extra bounce. In fact, he was pretty wayward with his lines and lengths, which might have just costed him a place in the T20I side. But Rauf has been one of the better bowlers over the last few years with over 20 wickets to his name. And with the PSL coming in, the Lahore Qalandars pacer would ideally be one of the hot commodities during the competition. With his stocks trading at 37.30 Sixer Coins per Share, Rauf could be in for a stellar rise in the Market!Bull #2: Ravichandran Ashwin (India)Over to the all-important Chepauk Test, Ravichandran Ashwin is on fire with another fifer to his name. In fact, the off-spinner has eleven wickets in his last two innings, which has already spurred his fantasy price by nearly 10%. His match score average reads 84.40 across his last two Tests, the highest in the ongoing series. He has been able to hit his lines from the word go with the lanky offie even sharing the new ball in the last two innings. The English openers have struggled against Ashwin, which could even form a pattern going ahead in the series. But if Ashwin continues to sustain this form, a hefty profit awaits his fantasy shareholders.Bear #2: Virat Kohli (India)Last but not least is Virat Kohli, albeit as a Bear in the Sixer Market! The Indian captain had faltered with a match score average of just 35.61. Although he did score a fifty in the first Test against England, he hasn't been able to get himself in and play a typical knock. While he did show glimpses of his play today, Virat hasn't used his feet or the sweep shot much, making him a liability. But Virat, being one of the best batsmen in the world, is well and truly capable of a big knock at any given time. With the Pink Ball Test in Ahmedabad set to favour pacers, it could well be a blessing for Virat Kohli and his fantasy shareholders! Think he can get a big one today? Add him and many others to your portfolios before it's too late!