Might there be less impact on the sp and less volatility once...

Might there be less impact on the sp and less volatility once performance shares are granted  if 73% of ISX shares are owned by the top 20 shareholders?

Source is: https://www.marketindex.com.au/asx/ISX

Top 20 Shareholders
About the Data

	Name​	Shares​	Capital​
1	Isignthis Ltd	297,343,100	47.06%
2	Citicorp Nominees Pty Limited	40,971,120	6.48%
3	Ubs Nominees Pty Ltd	19,769,834	3.13%
4	Mycatmax Pty Ltd	13,250,000	2.10%
5	Bannaby Investments Pty Limited	11,500,000	1.82%
6	IFM Pty Limited	10,000,000	1.58%
7	Brispot Nominees Pty Ltd	8,816,656	1.40%
8	J P Morgan Nominees Australia Limited	8,452,970	1.34%
9	HSBC Custody Nominees (Australia) Limited A/C 2	7,092,400	1.12%
10	Ms Merle Smith & Ms Kathryn Smith(I)	6,550,000	1.04%
11	Mr Ian Tetro	5,966,667	0.94%
12	Mahsor Holdings Pty Ltd	5,500,000	0.87%
13	Hsbc Custody Nominees (Australia) Limited	5,497,192	0.87%
14	National Nominees Limited	4,770,256	0.75%
15	Ms Merle Smith & Ms Kathryn Smith(II)	4,000,000	0.63%
16	Ithaki Nominees Pty Ltd	3,000,000	0.47%
17	Champio Pty Ltd	2,830,452	0.45%
18	Bnp Paribas Nominees Pty Ltd Hub24 Custodial Serv Ltd Drp	2,793,403	0.44%
19	Whistler Street Pty Ltd	2,593,557	0.41%
20	Ignition Ltd	2,571,000	0.41%
21	All other shareholders	26.69 %

HIDE

The Top 20 Shareholders of ISX hold 73.31% of shares on issue.