The S&P/ASX 200 Index (ASX: XJO) enjoyed yet another record-breaking session this Thursday, continuing a momentous week for ASX shares and the Australian share market.
After launching into positive territory with gusto this morning, the ASX 200 spent the entire day there, closing 0.51% higher at 9,175.3 points. That's after the index clocked a new all-time high of 9,202.9 points during intra-day trading.
This euphoric session for Australian investors follows a similarly happy morning over on Wall Street.
The Dow Jones Industrial Average Index (DJX: .DJI) was in fine form, rising 0.63%.
The tech-heavy Nasdaq Composite Index (NASDAQ: .IXIC) was more enthusiastic, gaining a solid 1.26%.
But let's return to the local markets now and dive deeper into how today's market optimism has trickled down into the different ASX sectors.

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Winners and losers
Although significant, today's market optimism wasn't universal, with a handful of sectors going backwards.
Leading those unlucky red sectors were energy shares. The S&P/ASX 200 Energy Index (ASX: XEJ) was left out in the cold this session, plunging 1.48%.
Industrial stocks were unpopular as well, with the S&P/ASX 200 Industrials Index (ASX: XNJ) diving 0.83% lower.
Gold shares were no safe haven either. The All Ordinaries Gold Index (ASX: XGD) suffered a 0.78% slump today.
We could say the same for utilities stocks, illustrated by the S&P/ASX 200 Utilities Index (ASX: XUJ)'s 0.75% dip.
Financial shares were our last losers this Thursday. The S&P/ASX 200 Financials Index (ASX: XFJ) had retreated 0.05% by the closing bell.
With the losers now out of the way, let's get to the winners. Leading the charge this session were again tech stocks, with the S&P/ASX 200 Information Technology Index (ASX: XIJ) rocketing another 5.19%.
Consumer staples shares had another fantastic day, too. The S&P/ASX 200 Consumer Staples Index (ASX: XSJ) soared up 1.61%.
Communications stocks mirrored that rise, as you can see from the S&P/ASX 200 Communication Services Index (ASX: XTJ)'s 1.61% surge.
Healthcare shares were just behind that. The S&P/ASX 200 Healthcare Index (ASX: XHJ) saw its value spike 1.58% this session.
Real estate investment trusts (REITs) put on a strong showing too, with the S&P/ASX 200 A-REIT Index (ASX: XPJ)'s 1.16% jump.
Mining stocks continued to impress investors. The S&P/ASX 200 Materials Index (ASX: XMJ) lifted a flat 1% today.
Finally, consumer discretionary shares didn't fail to find buyers, evidenced by the S&P/ASX 200 Consumer Discretionary Index (ASX: XDJ)'s 0.55% improvement.
Top 10 ASX 200 shares countdown
Leading the charts this Thursday was tech stock Megaport Ltd (ASX: MP1).
Megaport shares were on fire today, shooting up 12.59% to $9.12 each. There wasn't any news out from the company today, but most tech stocks had a blowout.
Here's how the other top performers tied up at the dock:
| ASX-listed company | Share price | Price change |
| Megaport Ltd (ASX: MP1) | $9.12 | 12.59% |
| Telix Pharmaceuticals Ltd (ASX: TLX) | $10.20 | 10.87% |
| Ramsay Health Care Ltd (ASX: RHC) | $42.12 | 10.35% |
| Generation Development Group Ltd (ASX: GDG) | $4.68 | 10.12% |
| Pro Medicus Ltd (ASX: PME) | $127.60 | 9.78% |
| DroneShield Ltd (ASX: DRO) | $7.42 | 9.60% |
| Cleanaway Waste Management Ltd (ASX: CWY) | $1.75 | 9.38% |
| Xero Ltd (ASX: XRO) | $82.30 | 8.63% |
| PLS Group Ltd (ASX: PLS) | $5.25 | 8.25% |
| Domino's Pizza Enterprises Ltd (ASX: DMP) | $20.84 | 8.15% |
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.