Investors endured another rough day of trading on the ASX boards this Tuesday, with the S&P/ASX 200 Index (ASX: XJO) recording its second fall for the week.
By the time trading wrapped up this session, the ASX 200 had retreated by another 0.3%. That leaves the index at a tentative 8,900.6 points.
This tremulous Tuesday for the Australian markets comes after a pessimistic beginning to the American trading week last night.
The Dow Jones Industrial Average Index (DJX: .DJI) was in poor form and slid 0.2% lower.
The tech-heavy Nasdaq Composite Index (NASDAQ: .IXIC) did even worse than that, sliding by a substantial 1.15%.
But let's return to the local markets now and examine what happened in the various ASX sectors today.

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Winners and losers
The red sectors comprehensively outnumbered the green ones this session.
Leading the former were consumer discretionary shares. The S&P/ASX 200 Consumer Discretionary Index (ASX: XDJ) had a shocker, cratering by 1.89%.
Consumer staples stocks were in a similar ballpark, with the S&P/ASX 200 Consumer Staples Index (ASX: XSJ) diving 1.66%.
As were real estate investment trusts (REITs). The S&P/ASX 200 A-REIT Index (ASX: XPJ) ended up plunging 1.25%.
Communications shares had a hard time today as well, illustrated by the S&P/ASX 200 Communication Services Index (ASX: XTJ)'s 1.11% shellacking.
Healthcare stocks were in poor form, too. The S&P/ASX 200 Healthcare Index (ASX: XHJ) was sent home 0.83% lighter this Tuesday.
Utilities shares weren't seeing too much buying either, with the S&P/ASX 200 Utilities Index (ASX: XUJ) taking a 0.75% bath.
Energy stocks had a day to forget as well. The S&P/ASX 200 Energy Index (ASX: XEJ) saw its value take a 0.46% hit today.
Our next losers were industrial stocks, as you can see from the S&P/ASX 200 Industrials Index (ASX: XNJ)'s 0.28% slide.
Mining shares round out our losers list today. The S&P/ASX 200 Materials Index (ASX: XMJ) saw a 0.01% slip by the closing bell.
Turning to the green sectors now, the winners were led by financial stocks, with the S&P/ASX 200 Financials Index (ASX: XFJ) surging up a decent 0.42% today.
Gold shares had another positive day as well. The All Ordinaries Gold Index (ASX: XGD) enjoyed a 0.36% lift this Tuesday.
Finally, tech stocks made the winners cut, evidenced by the S&P/ASX 200 Information Technology Index (ASX: XIJ)'s 0.35% lift.
Top 10 ASX 200 shares countdown
The index topper this Tuesday came down to healthcare stock Polynovo Ltd (ASX: PNV). Polynovo shares bounced a massive 10.27% higher this session to close at $1.45 each.
This big jump followed some pleasing news out of the United States, which we dove into here.
Here's how the rest of today's winners pulled up at the dock:
| ASX-listed company | Share price | Price change |
| Polynovo Ltd (ASX: PNV) | $1.45 | 10.27% |
| NRW Holdings Ltd (ASX: NWH) | $4.04 | 6.32% |
| Clarity Pharmaceuticals Ltd (ASX: CU6) | $3.09 | 5.10% |
| Tabcorp Holdings Ltd (ASX: TAH) | $1.01 | 4.12% |
| Fletcher Building Ltd (ASX: FBU) | $2.95 | 3.51% |
| Ramelius Resources Ltd (ASX: RMS) | $3.41 | 2.71% |
| Perseus Mining Ltd (ASX: PRU) | $4.11 | 2.24% |
| Infratil Ltd (ASX: IFT) | $10.60 | 2.32% |
| Neuren Pharmaceuticals Ltd (ASX: NEU) | $19.61 | 2.19% |
| Magellan Financial Group Ltd (ASX: MFG) | $10.35 | 2.17% |
Our top 10 shares countdown is a recurring end-of-day summary that shows which companies made big moves on the day. Check in at Fool.com.au after the weekday market closes to see which stocks make the countdown.