1. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
2. Cyhoeddwyd

   Return reversals and the compass rose: insights from high frequency options data

   ap Gwilym, O. M., Verousis, T. & Ap Gwilym, O., 1 Medi 2011, Yn: European Journal of Finance. 17, 9-10, t. 883-896

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

3. Cyhoeddwyd

   Size clustering in the FTSE100 index futures market.

   ap Gwilym, O. M., Ap Gwilym, O. & Meng, L., 1 Mai 2010, Yn: Journal of Future Markets. 30, 5, t. 432-443

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

4. Cyhoeddwyd

   Sovereign rating actions and the implied volatility of stock index options

   Tran, V., Alsakka, R. & ap Gwilym, O. M., 5 Meh 2014, Yn: International Review of Financial Analysis. 34, t. 101-113

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

5. Cyhoeddwyd

   Sovereign rating actions: is the criticism justified?

   Alsakka, R. & ap Gwilym, O., 1 Rhag 2011, Yn: Intereconomics : review of European economic policy. 46, 5, t. 248-253

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

6. Cyhoeddwyd

   Speculate against speculative demand

   ap Gwilym, O. M., Ap Gwilym, O., Kita, A. & Wang, Q., 26 Maw 2014, Yn: International Review of Financial Analysis. 34, t. 212-221

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

7. Cyhoeddwyd

   Split sovereign ratings and rating migrations in emerging economies.

   ap Gwilym, O. M., Alsakka, R. & Ap Gwilym, O., 1 Meh 2010, Yn: Emerging Markets Review. 11, 2, t. 79-97

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

8. Cyhoeddwyd

   Structural changes, bid-ask spread composition and tick size in inter-bank futures trading.

   McGroarty, F., ap Gwilym, O. M. & Thomas, S., 1 Ebr 2011, Yn: European Journal of Finance. 17, 4, t. 285-306

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

9. Cyhoeddwyd

   Tactical Equity Investing Across Bull and Bear Markets

   ap Gwilym, O., Clare, A., Seaton, J. & Thomas, S., 1 Maw 2012, Yn: Journal of Wealth Management. t. 61-69

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

10. E-gyhoeddi cyn argraffu

    Technical analysis as a sentiment barometer and the cross-section of stock returns

    Ding, W., Mazouz, K., ap Gwilym, O. & Wang, Q., 1 Medi 2023, (E-gyhoeddi cyn argraffu) Yn: Quantitative Finance.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

11. Cyhoeddwyd

    The European Bank Recovery and Resolution Directive: A market assessment

    Pancotto, L., ap Gwilym, O. & Williams, J., Hyd 2019, Yn: Journal of Financial Stability. 44

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

12. Cyhoeddwyd

    The Impact of Regulatory Reforms on European Bank Behaviour: A Dynamic Structural Estimation

    Jones, L., Alsakka, R., ap Gwilym, O. & Mantovan, N., Tach 2022, Yn: European Economic Review. 150, 104280.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

13. Cyhoeddwyd

    The Impact of a Premium-Based Tick Size on Equity Option Liquidity

    Verousis, T., ap Gwilym, O. & Voukelatos, N., 7 Maw 2016, Yn: Journal of Futures Markets. 36, 4, t. 397-417

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

14. Cyhoeddwyd

    The Use of Credit Ratings in Investment Management in the US and Europe

    ap Gwilym, O. M., Cantor, R., Ap Gwilym, O. & Thomas, S., 1 Hyd 2007, Yn: Journal of Fixed Income. 17, 2, t. 13-26

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

15. Cyhoeddwyd

    The causes and extent of split sovereign credit ratings in emerging markets.

    Alsakka, R. & ap Gwilym, O., 1 Ion 2012, Yn: Emerging Markets Finance and Trade. 48, 1, t. 4-24

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

16. Cyhoeddwyd

    The characteristics and evolution of credit default swap trading.

    ap Gwilym, O. M., Meng, L. & Ap Gwilym, O., 1 Tach 2007, Yn: Journal of Derivatives and Hedge Funds. 13, 3, t. 186-198

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

17. Cyhoeddwyd

    The components of electronic inter-dealer spot FX bid-ask spreads.

    ap Gwilym, O. M., McGroarty, F., Ap Gwilym, O. & Thomas, S., 1 Tach 2007, Yn: Journal of Business Finance and Accounting. 34, 9-10, t. 1635-1650

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

18. Cyhoeddwyd

    The credit signals that matter most for sovereign bond spreads with split rating

    Vu, H., Alsakka, R. & ap Gwilym, O. M., Mai 2015, Yn: Journal of International Money and Finance. 53, t. 174-191

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

19. Cyhoeddwyd

    The determinants of CDS bid-ask spreads.

    ap Gwilym, O. M., Meng, L. & Ap Gwilym, O., 1 Hyd 2008, Yn: Journal of Derivatives. 16, 1, t. 70-80

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

20. Cyhoeddwyd

    The determinants of trading volume for cross-listed Euribor futures contracts.

    ap Gwilym, O. M., Ap Gwilym, O., Aguenaou, S. & Rhodes, M., 1 Ion 2009, Yn: European Journal of Finance. 15, 1, t. 89-102

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

21. Cyhoeddwyd

    The evolution and determinants of the non-performing loan burden in Italian banking

    Pancotto, L., ap Gwilym, O. & Williams, J., Ebr 2024, Yn: Pacific-Basin Finance Journal. 84, 102306.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

22. Cyhoeddwyd

    The impact of ESMA regulatory identifiers on the quality of ratings

    Klusak, P., Alsakka, R. & ap Gwilym, O., Tach 2019, Yn: International Review of Financial Analysis. 66, 101365.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

23. Cyhoeddwyd

    The impact of sovereign rating actions on bank ratings in emerging markets

    ap Gwilym, O. M., Williams, G. L. & Alsakka, R., 1 Chwef 2013, Yn: Journal of Banking and Finance. 37, 2, t. 563-577

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

24. Cyhoeddwyd

    The implications of a price anchoring effect at the upstairs market of the London Stock Exchange

    Verousis, T. & ap Gwilym, O., Maw 2014, Yn: International Review of Financial Analysis. 32, t. 37-46

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

25. Cyhoeddwyd

    The influence of rating levels and rating convergence on the spillover effects of sovereign credit actions

    Abad, P., Alsakka, R. & ap Gwilym, O., Gorff 2018, Yn: Journal of International Money and Finance. 85, t. 40-57

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

26. Cyhoeddwyd

    The intraday determination of liquidity in the NYSE LIFFE equity option markets

    Verousis, T., ap Gwilym, O. & Chen, X., 13 Maw 2015, Yn: European Journal of Finance.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

27. Cyhoeddwyd

    The lead-lag relationship between the FTSE100 stock index and its derivative contracts.

    ap Gwilym, O. M., Ap Gwilym, O. & Buckle, M., 1 Awst 2001, Yn: Applied Financial Economics. 11, 4, t. 385-393

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

28. Cyhoeddwyd

    The role of payout ratio in the relationship between stock returns and dividend yield.

    ap Gwilym, O. M., McManus, I., Ap Gwilym, O. & Thomas, S., 1 Tach 2004, Yn: Journal of Business Finance and Accounting. 31, 9-10, t. 1355-1387

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

29. Cyhoeddwyd

    The role of private information in return volatility, bid-ask spreads and price levels in the foreign exchange market.

    McGroarty, F., ap Gwilym, O. M. & Thomas, S., 1 Ebr 2009, Yn: Journal of International Financial Markets, Institutions and Money. 19, 2, t. 387-401

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

30. Cyhoeddwyd

    The sovereign-bank rating channel and rating agencies' downgrades during the European debt crisis

    ap Gwilym, O. M., Alsakka, R., Ap Gwilym, O. & Vu, T. N., 13 Ebr 2014, Yn: Journal of International Money and Finance. 49, part B, t. 235-257

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

31. Cyhoeddwyd

    Trade size clustering and the cost of trading at the London Stock Exchange

    ap Gwilym, O. M., Verousis, T. & Ap Gwilym, O., 18 Medi 2012, Yn: International Review of Financial Analysis.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

32. Cyhoeddwyd

    Very long term equity investment strategies: real stock prices and mean reversion.

    ap Gwilym, O. M., Ap Gwilym, O., Seaton, J. & Thomas, S., 1 Meh 2008, Yn: Journal of Investing. 17, 2, t. 15-23

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

33. Cyhoeddwyd

    Volatility Transmission Among the CDS, Equity, and Bond Markets.

    ap Gwilym, O. M., Meng, L., Ap Gwilym, O. & Varas, J., 1 Tach 2009, Yn: Journal of Fixed Income. 18, 3, t. 33-46

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

34. Cyhoeddwyd

    What drives differences of opinion in sovereign ratings? The roles of information disclosure and political risk

    Vu, H., Alsakka, R. & ap Gwilym, O., Gorff 2017, Yn: International Journal of Finance and Economics. 22, 3, t. 216-233

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

35. Pennod › Ymchwil › Heb ei adolygu gan gymheiriaid
36. Cyhoeddwyd

    Evidence on trading mechanisms.

    ap Gwilym, O. M., Ap Gwilym, O., Board, J. (gol.), Sutclifee, C. (gol.) & Wells, S. (gol.), 1 Ion 2002, Transparency and Fragmentation: Financial Market Regulation in a Dynamic Environment. 2002 gol. Palgrave Macmillan, t. 101-140

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

37. Cyhoeddwyd

    Futures market liquidity under floor and electronic trading.

    ap Gwilym, O. M., McManus, I., Ap Gwilym, O., Thomas, S., Morrey, J. (gol.) & Guyton, A. (gol.), 1 Ion 2009, Liquidity: Interest Rates and Banking. 2009 gol. Nova Science, t. 111-138

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod